---
product_id: 230544110
title: "1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & aptX Low Latency/HD/Adaptive, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs"
brand: "1mii"
price: "Bs.1601"
currency: BOB
in_stock: true
reviews_count: 8
category: "1 Mii"
url: https://www.desertcart.bo/products/230544110-1mii-b03pro-bluetooth-5-3-transmitter-receiver-for-home-stereo
store_origin: BO
region: Bolivia
---

# Bluetooth 5.3 with 265ft long-range dual antennas ESS Sabre Audiophile DAC for pristine sound aptX Low Latency <40ms for perfect sync 1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & aptX Low Latency/HD/Adaptive, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs

**Brand:** 1mii
**Price:** Bs.1601
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your soundscape—because your ears deserve the best.

## Quick Answers

- **What is this?** 1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & aptX Low Latency/HD/Adaptive, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs by 1mii
- **How much does it cost?** Bs.1601 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/230544110-1mii-b03pro-bluetooth-5-3-transmitter-receiver-for-home-stereo)

## Best For

- 1mii enthusiasts

## Why This Product

- Trusted 1mii brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Device Pairing:** Simultaneously connect two Bluetooth headphones or speakers and share your premium sound experience effortlessly.
- • **Plug & Play Simplicity:** Seamlessly integrates with 99% of TVs, stereos, and Bluetooth devices via Optical, RCA, and 3.5mm AUX ports—no tech headaches, just pure audio bliss.
- • **Zero-Lag Audio Streaming:** aptX Low Latency technology ensures your audio stays perfectly in sync with video—no more annoying lip-sync delays.
- • **Audiophile-Grade Sound Quality:** Experience crystal-clear, lossless audio with the built-in ESS Sabre DAC, delivering a 121dB signal-to-noise ratio for true Hi-Fi fidelity.
- • **Next-Gen Bluetooth 5.3 Connectivity:** Enjoy ultra-stable wireless streaming with Class 1 Bluetooth and dual antennas, extending your audio range up to 265ft line-of-sight.

## Overview

The 1Mii B03Pro Bluetooth 5.3 Transmitter Receiver is a premium wireless audio adapter featuring an ESS Sabre audiophile DAC, advanced aptX codecs including Low Latency and HD, and a powerful Class 1 Bluetooth with dual antennas for up to 265ft range. It supports Optical, RCA, and 3.5mm inputs/outputs, enabling seamless connection to home stereos, TVs, and Bluetooth headphones or speakers. Designed for audiophiles and professionals alike, it delivers lossless, high-fidelity sound with minimal delay and dual device streaming capability.

## Description

Buy 1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & aptX Low Latency/HD/Adaptive, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs: Wireless Audio Receivers & Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Simple to connect and works great - I had no idea how to connect my 40 year old stereo to a set of bluetooth speakers for the rest of the house. This is the ticket - simple as pie to connect. It has volume control on the box to control the signal you send to your remote speakers, most speakers have volume control also and the volume control on the stereo drive all of it. No delay. I can crank the volume on the stereo and the sound coming out of the Bluetooth speakers upstairs is in perfect sync. Highly recommended.
Review: Genuine audiophile DAC in a powerful Bluetooth receiver/transmitter. - I’ve been working at home during the pandemic and got tired of always having earphones in so I dug an old Panasonic compact stereo out of the basement to set up on my desk. Well, the audiophile bug I’ve had off-and-on for 40 years bit again and the kit speakers soon proved unsatisfactory, so I started upgrading my system. The most important component in any audio system is the speakers, and I picked up a used, vintage pair of Monitor Audio MA 301s, which I think are probably the finest small bookshelf speaker under $1000 ever made. I was using a little Mpow BT receiver to play Spotify through my iPhone, but figured I could get much better sound quality with something that was bigger and more substantial than a device that was smaller than a pack of gum. I tend to over-research everything electronics before I commit, and was very impressed by several reviews I’ve seen of another Bluetooth DAC (digital-to-analog converter - it’s what turns digital signals into analog audio that can be played through an amplifier to speakers or headphones, and most people into high-quality music will have either a standalone DAC or a high quality one in their CD player or amp/preamp) sold here on desertcart for only 25 bucks. It’s made by a company called Mypin and got rave reviews from several audio review channels on YouTube that stated in addition to Bluetooth, it would also improve the audio quality if connected to a CD player, compared to the player’s built in DAC. So I bought the little Mypin, but also spotted this 1Mii unit that boasted an “audiophile DAC” plus also receives better-than-CD Apt-X HD signals and pretty much all other high-quality Bluetooth audio signal types. And so I figured I would give this one a try too, as I could always send it back if it wasn’t notably better than the $25 Mypin. Since we are wedded to a family Spotify plan, and Spotify won’t have lossless, cd quality audio available until some later point in 2021, I also started thinking I wanted to be able to play a lot of my old CDs to be able to have better sound quality than through the Bluetooth and decided to pick up an used Sony five disc carousel CD/DVD/SACD player to use as a transport and run its digital signal into the Bluetooth DAC unit to let the DAC convert the signal to analog (also, my amplifier has only a single pair of RCA auxiliary inputs, so I would be able to use the BT DAC as an audio switch between the Bluetooth receiver and the DAC unit processing sound from my CDs). So I needed a DAC that had a traditional digital audio input, either a coaxial one or an optical one. There are a number of audiophile Bluetooth DAC receivers on desertcart in the $100-$180 range (iFi Zen Blue, Bluedento, Audioengine B1), that have the highly regarded Burr Brown DAC chip in them but surprisingly their coaxial and optical digital connections are for output only to another DAC which makes little sense - Why equip a device with a high-quality DAC that works only for Bluetooth rather than any other digital connections? The Mypin has both coaxial and optical inputs, but the 1Mii has only one optical input; it does have a digital optical output, too, I guess if you have a higher and stand alone DAC and just want to use this unit for the Bluetooth. So my desertcart package with the two Bluetooth DAC’s arrives and I try out the cheaper one first. The Mypin did have better sound than my Mpow portable BT receiver playing Spotify and had slightly better sound than connecting the CD player directly. Then I tried the 1Mii B03Pro+..First thing to note is that unlike any of the more audiophile specific BT DAC’s or even the cheap $25 Mypin one, this unit does not have standard RCA outputs to run a pair of RCA interconnects into one’s amplifier or receiver. Instead there is only a standard 3.5 mm headphone-size output jack. Luckily, I had a 3.5 mm to RCA cable, plus there is one included in the box, but the included cable is very thin, very cheap, and has sound quality commensurate with its appearance. I replace the included one with the relatively inexpensive cable I have used to plug old cell phones into my AV receivers for several years and noted an immediate and very appreciable increase in sound quality, but with some buzzing and feedback in Bluetooth mode, unless the cable was adjusted just right in the back of the 1Mii unit. The B03Pro+ (the “Pro+” means that it has the audiofile DAC) features an ESS Sabre DAC, which I recall vaguely hearing of before, but I did some further research. I noted some audio industry news stating this DAC was being used in an LG cell phone, which initially did not have me very impressed, until I learned that model LG is generally recognized as having the finest sound quality of any cell phone. A bit further research revealed highly-regarded entry-to-mid level audiophile brands Arcam, Audioquest, Cambridge Audio and NAD use the same DAC chip in some of their standalone DAC units, as well as in amplifiers and cd players. So how does it sound? So good that I put the $25 unit back in the box and haven’t given any thought of using that but may give it to someone else. I have found a good test of a system’s sound quality is how it reproduces Mighty Sam McLain’s vocals – – a cheaper system leaves his voice a bit thin whereas a higher quality one renders his voice deep, rich, and perhaps the finest male vocalist in the blues genre. The B03Pro+ does full and proper justice to McLain’s voice. I think the area where this DAC also makes the biggest impact is with soundstage and imaging. With the signal coming straight from the CD player, sound for most recordings is mostly coming identifiably from each speaker and its range is only between the two speakers. When I connected this DAC between the CD transport and the amplifier, the speakers simply disappeared. The soundstage in some recordings expanded far outside of the speakers and certain instruments or singers were precisely positioned at a location between the speakers, sometimes much higher than the level of the speaker. Using Dire Straits’ Private Investigations, one can precisely hear and visualize just where the eerie cat is crying, where the wine glass breaks, and follow the footsteps as they walk across the entire soundstage. The Bluetooth audio is also quite good, but my source is limited, not just by Spotify’s sub-CD quality, for the present, but by my iPhone 7’s Bluetooth- I didn’t realize it at the time, but Apple doesn’t use the highest quality BT transmission- Apt-X HD, which is available for some Android phone users. I haven’t used the unit as a transmitter, for instance, plugged into a television so that one could use Bluetooth headphones to listen. However, as a receiver, it has scary long range. If I want to watch some thing on my phone when I go to bed and I have forgotten to shut the 1Mii off at night, it will play the audio through the Bluetooth DAC instead of my phone, even from across the house. And this is one of its biggest negatives: although it paired very easily with my iPhone and automatically repairs with it when switched to Bluetooth mode, it does not want to disconnect. I either have to forget the device altogether on my phone or go downstairs and shut off the unit, otherwise it will reconnect to my phone, which is mildly annoying. I got a bit annoyed with the buzzing sound that sometimes happens when the cable isn’t precisely adjusted in the 3.5 mm jack in Bluetooth mode, so I bought a better 3.5mm-to-RCA cable, an Audioquest Evergreen. I am only a limited believer in the benefits of audiophile cables and wires, and don’t think that anything above the $50 range typically would produce a notably better sound that could repeatably be detected in a blind listening test by the vast majority of people. However, I did notice a significant improvement in the sound using the Audioquest cable, not merely that the buzzing and feedback had disappeared. On the Cowboy Junkies’ beautifully recorded The Trinity Session CD one can hear subtle breaths by Margo Timmons in her soft but beautiful voice. Her brother Michael’s outstanding (and under-appreciated) guitar work is also improved with more detail. The Audioquest cable is a recommended accessory- the 3.5mm-to-RCA cable that 1Mii includes in the box does not do justice to the audiophile capabilities of this DAC. In conclusion, I am really enjoying high quality music again right on my office desk and this 1Mii Bluetooth DAC is a big part of it. I highly recommend this unit and even if one rarely would use the Bluetooth functionality, it is a very solid value at about 75 bucks just to use as a standalone DAC.

## Features

- 【Bluetooth 5.3】Featuring the latest Bluetooth 5.3 and support for Qualcomm aptX Adaptive, aptX Low Latency, aptX HD, aptX, AAC and SBC decoding. NOTE: AAC is only available in receiver mode, while aptX Low Latency is only available in transmitter mode
- 【Best-in-Class Audio】Built-in SABRE DAC which is widely recognized by audiophiles as the gold standard for audio performance, this allies perfectly with the Qualcomm chip. Allowing you to enjoy the superior resolution and detail, consistently deliver excellent signal to noise ratio 121dB. The true Hi-Fi Audiophile Digital to Analogue Converter DAC allows 1Mii HiFi adapter to decode and play audio files in all their lossless glory
- 【Extend Long Range】Utilizing Class 1 Bluetooth technology and designed with dual antennas, 1Mii B03Pro Bluetooth transmitter receiver can achieve a range of up to 265ft (80m) line-of-sight in open air and up to 80-110ft (25-35m) indoors. *NOTE: Operation range can be affected by Wi-Fi routers, wireless TV adapter, physical obstructions like walls, metal obstacles etc. and also depends on receiving device
- 【No Lip Sync Delay & Dual Stream】aptX Low Latency technology eliminates Bluetooth audio delay, and B03Pro supports dual link Simultaneously, pair with two Bluetooth headphones/speakers, both enjoy ultra-fast audio streaming. **Note: To achieve low latency ( <40ms delay), your receiving device must also support aptX Low Latency, or you may experience a 70-220ms delay
- 【Mindless Operation】Simply plug audio cable and press the power button to start, the Bluetooth adapter will detect your Bluetooth device easily. Compatible with 99% of TVs, Bluetooth headphones or speakers, Home stereo system, supports Optical, AUX, RCA Audio outputs / inputs
- 【NOTE】1Mii B03Pro Bluetooth Transceiver cannot work in both receiving (RX) and transmitting (TX) modes at the same time, the user must select one of the modes to use. Contact after-sales for connectivity issues

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08J7MKYN1 |
| Additional Features | Connect 2 wireless headphones or speakers, High-definition Audio, Optical, 3.5mm AUX, RAC Port, aptX Low Latency/HD/Adaptive, with Extra DAC |
| Audio Input | RCA, 3.5mm AUX, Optical |
| Audio Output Mode | Stereo |
| Audio Output Type | Headphone, Speaker |
| Best Sellers Rank | #12,306 in Electronics ( See Top 100 in Electronics ) #64 in Wireless Audio Receivers & Adapters |
| Bluetooth support? | Yes |
| Brand | 1Mii |
| Built-In Media | 1Mii B03Pro Bluetooth Transmitter Receiver, 3.5mm AUX, RCA to 3.5mm AUX, Optical Audio Cable, USB Power Adapter and USB Power Cable, User Manual |
| Color | Black1 |
| Compatibility Options | Amplifier, Personal Computer, Tablet, Smartphone, Television, Headphone, Speaker |
| Compatible Devices | Amplifier, Headphone, Speaker, Personal Computer, Tablet, Tablet, Smartphone, Television |
| Connectivity Technology | Bluetooth |
| Connector Type Used on Cable | RCA |
| Control Method | Push Button |
| Controller Type | Button Control |
| Customer Reviews | 4.2 out of 5 stars 1,080 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) |
| Hardware Interface | Bluetooth |
| Includes Remote | No |
| Installation Type | External |
| Item Dimensions L x W x H | 3.8"L x 2.9"W x 0.9"H |
| Item Height | 0.9 inches |
| Item Weight | 0.29 Kilograms |
| Manufacturer | 1Mii |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model Name | B03Pro |
| Number of Channels | 2 |
| Outer Material | Plastic |
| Power Source | Corded Electric |
| Product Dimensions | 3.8"L x 2.9"W x 0.9"H |
| Rechargeable Battery Included | No |
| Special Feature | Connect 2 wireless headphones or speakers, High-definition Audio, Optical, 3.5mm AUX, RAC Port, aptX Low Latency/HD/Adaptive, with Extra DAC Special Feature Connect 2 wireless headphones or speakers, High-definition Audio, Optical, 3.5mm AUX, RAC Port, aptX Low Latency/HD/Adaptive, with Extra DAC See more |
| Supported Application | Any audio application |
| Supported Media Type | Bluetooth |
| Supported Standards | Bluetooth 5.3, aptX Adaptive, aptX Low Latency, aptX HD, aptX, AAC, and SBC |
| Warranty Description | 12 Months |
| Wireless Compability | Bluetooth |

## Product Details

- **Special Feature:** Connect 2 wireless headphones or speakers, High-definition Audio, Optical, 3.5mm AUX, RAC Port, aptX Low Latency/HD/Adaptive, with Extra DAC
- **Brand:** 1Mii
- **Connectivity Technology:** Bluetooth
- **Power Source:** Corded Electric
- **Material:** Acrylonitrile Butadiene Styrene (ABS)

## Images

![1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & aptX Low Latency/HD/Adaptive, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs - Image 1](https://m.media-amazon.com/images/I/51HGEVxqfFL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Can you change which of your 2 bluetooth devices you're are streaming too?**
A: Not automatically no. It’s quite mechanical. You either connect or disconnect a device. If u want to choose which headphones to connect to, you either have to do it from
The transmitter (which is not so straight forward), or you will to unpair / turn off the headphones that you dont want to use.

**Q: Will this connect to the bose s1, extending the distance? some dj gigs i need a wireless speaker set up.**
A: Two of them as a pair (one in transmit mode and the other in receive mode) have a theoretical line-of-sight transmission distance of 265 ft. So if that is greater than your present Bluetooth limits, and your Bose speakers have standard line-level input jacks, the answer to your question should probably be “yes”.

I’m presently using two across opposite ends of a home theater, and the nearly instantaneous “lip-sync” transmission of extremely high-quality stereo audio is truly impressive.

**Q: will this connect to a radio with a 3.5 mm headphone jack? . The radio in not bluetooth but I want it to transmit BT**
A: You can use AUX3.5mm to connect the radio and B03Pro+, and then use a Bluetooth headset to pair with B03Pro+ via Bluetooth.

**Q: Can this pair with Jabra Elite 75t**
A: Don't know, BUT It will not pair with 4  different bluetooth speakers I own. It will pair with windows laptop and desk top HP.  speakers I bought from Amazon (Doss Soundbox XL)  Will not pair. 1 out of 5  rate score for me. Amazon sent me a Email or I wouldn't waste my time. But fill my in box and you shall receive.  Buy the cheep one, check the Frequency of your device FIRST !!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple to connect and works great
*by J***A on January 7, 2026*

I had no idea how to connect my 40 year old stereo to a set of bluetooth speakers for the rest of the house. This is the ticket - simple as pie to connect. It has volume control on the box to control the signal you send to your remote speakers, most speakers have volume control also and the volume control on the stereo drive all of it. No delay. I can crank the volume on the stereo and the sound coming out of the Bluetooth speakers upstairs is in perfect sync. Highly recommended.

### ⭐⭐⭐⭐⭐ Genuine audiophile DAC in a powerful Bluetooth receiver/transmitter.
*by N***Y on March 29, 2021*

I’ve been working at home during the pandemic and got tired of always having earphones in so I dug an old Panasonic compact stereo out of the basement to set up on my desk. Well, the audiophile bug I’ve had off-and-on for 40 years bit again and the kit speakers soon proved unsatisfactory, so I started upgrading my system. The most important component in any audio system is the speakers, and I picked up a used, vintage pair of Monitor Audio MA 301s, which I think are probably the finest small bookshelf speaker under $1000 ever made. I was using a little Mpow BT receiver to play Spotify through my iPhone, but figured I could get much better sound quality with something that was bigger and more substantial than a device that was smaller than a pack of gum. I tend to over-research everything electronics before I commit, and was very impressed by several reviews I’ve seen of another Bluetooth DAC (digital-to-analog converter - it’s what turns digital signals into analog audio that can be played through an amplifier to speakers or headphones, and most people into high-quality music will have either a standalone DAC or a high quality one in their CD player or amp/preamp) sold here on Amazon for only 25 bucks. It’s made by a company called Mypin and got rave reviews from several audio review channels on YouTube that stated in addition to Bluetooth, it would also improve the audio quality if connected to a CD player, compared to the player’s built in DAC. So I bought the little Mypin, but also spotted this 1Mii unit that boasted an “audiophile DAC” plus also receives better-than-CD Apt-X HD signals and pretty much all other high-quality Bluetooth audio signal types. And so I figured I would give this one a try too, as I could always send it back if it wasn’t notably better than the $25 Mypin. Since we are wedded to a family Spotify plan, and Spotify won’t have lossless, cd quality audio available until some later point in 2021, I also started thinking I wanted to be able to play a lot of my old CDs to be able to have better sound quality than through the Bluetooth and decided to pick up an used Sony five disc carousel CD/DVD/SACD player to use as a transport and run its digital signal into the Bluetooth DAC unit to let the DAC convert the signal to analog (also, my amplifier has only a single pair of RCA auxiliary inputs, so I would be able to use the BT DAC as an audio switch between the Bluetooth receiver and the DAC unit processing sound from my CDs). So I needed a DAC that had a traditional digital audio input, either a coaxial one or an optical one. There are a number of audiophile Bluetooth DAC receivers on Amazon in the $100-$180 range (iFi Zen Blue, Bluedento, Audioengine B1), that have the highly regarded Burr Brown DAC chip in them but surprisingly their coaxial and optical digital connections are for output only to another DAC which makes little sense - Why equip a device with a high-quality DAC that works only for Bluetooth rather than any other digital connections? The Mypin has both coaxial and optical inputs, but the 1Mii has only one optical input; it does have a digital optical output, too, I guess if you have a higher and stand alone DAC and just want to use this unit for the Bluetooth. So my Amazon package with the two Bluetooth DAC’s arrives and I try out the cheaper one first. The Mypin did have better sound than my Mpow portable BT receiver playing Spotify and had slightly better sound than connecting the CD player directly. Then I tried the 1Mii B03Pro+..First thing to note is that unlike any of the more audiophile specific BT DAC’s or even the cheap $25 Mypin one, this unit does not have standard RCA outputs to run a pair of RCA interconnects into one’s amplifier or receiver. Instead there is only a standard 3.5 mm headphone-size output jack. Luckily, I had a 3.5 mm to RCA cable, plus there is one included in the box, but the included cable is very thin, very cheap, and has sound quality commensurate with its appearance. I replace the included one with the relatively inexpensive cable I have used to plug old cell phones into my AV receivers for several years and noted an immediate and very appreciable increase in sound quality, but with some buzzing and feedback in Bluetooth mode, unless the cable was adjusted just right in the back of the 1Mii unit. The B03Pro+ (the “Pro+” means that it has the audiofile DAC) features an ESS Sabre DAC, which I recall vaguely hearing of before, but I did some further research. I noted some audio industry news stating this DAC was being used in an LG cell phone, which initially did not have me very impressed, until I learned that model LG is generally recognized as having the finest sound quality of any cell phone. A bit further research revealed highly-regarded entry-to-mid level audiophile brands Arcam, Audioquest, Cambridge Audio and NAD use the same DAC chip in some of their standalone DAC units, as well as in amplifiers and cd players. So how does it sound? So good that I put the $25 unit back in the box and haven’t given any thought of using that but may give it to someone else. I have found a good test of a system’s sound quality is how it reproduces Mighty Sam McLain’s vocals – – a cheaper system leaves his voice a bit thin whereas a higher quality one renders his voice deep, rich, and perhaps the finest male vocalist in the blues genre. The B03Pro+ does full and proper justice to McLain’s voice. I think the area where this DAC also makes the biggest impact is with soundstage and imaging. With the signal coming straight from the CD player, sound for most recordings is mostly coming identifiably from each speaker and its range is only between the two speakers. When I connected this DAC between the CD transport and the amplifier, the speakers simply disappeared. The soundstage in some recordings expanded far outside of the speakers and certain instruments or singers were precisely positioned at a location between the speakers, sometimes much higher than the level of the speaker. Using Dire Straits’ Private Investigations, one can precisely hear and visualize just where the eerie cat is crying, where the wine glass breaks, and follow the footsteps as they walk across the entire soundstage. The Bluetooth audio is also quite good, but my source is limited, not just by Spotify’s sub-CD quality, for the present, but by my iPhone 7’s Bluetooth- I didn’t realize it at the time, but Apple doesn’t use the highest quality BT transmission- Apt-X HD, which is available for some Android phone users. I haven’t used the unit as a transmitter, for instance, plugged into a television so that one could use Bluetooth headphones to listen. However, as a receiver, it has scary long range. If I want to watch some thing on my phone when I go to bed and I have forgotten to shut the 1Mii off at night, it will play the audio through the Bluetooth DAC instead of my phone, even from across the house. And this is one of its biggest negatives: although it paired very easily with my iPhone and automatically repairs with it when switched to Bluetooth mode, it does not want to disconnect. I either have to forget the device altogether on my phone or go downstairs and shut off the unit, otherwise it will reconnect to my phone, which is mildly annoying. I got a bit annoyed with the buzzing sound that sometimes happens when the cable isn’t precisely adjusted in the 3.5 mm jack in Bluetooth mode, so I bought a better 3.5mm-to-RCA cable, an Audioquest Evergreen. I am only a limited believer in the benefits of audiophile cables and wires, and don’t think that anything above the $50 range typically would produce a notably better sound that could repeatably be detected in a blind listening test by the vast majority of people. However, I did notice a significant improvement in the sound using the Audioquest cable, not merely that the buzzing and feedback had disappeared. On the Cowboy Junkies’ beautifully recorded The Trinity Session CD one can hear subtle breaths by Margo Timmons in her soft but beautiful voice. Her brother Michael’s outstanding (and under-appreciated) guitar work is also improved with more detail. The Audioquest cable is a recommended accessory- the 3.5mm-to-RCA cable that 1Mii includes in the box does not do justice to the audiophile capabilities of this DAC. In conclusion, I am really enjoying high quality music again right on my office desk and this 1Mii Bluetooth DAC is a big part of it. I highly recommend this unit and even if one rarely would use the Bluetooth functionality, it is a very solid value at about 75 bucks just to use as a standalone DAC.

### ⭐⭐⭐⭐ Guess it is okay for the price
*by G***R on December 12, 2025*

In a pinch for digital connections, it will do nicely. It looks nice, with a small foot print and elegant gold-colored plating on the switches. For sound quality, it's about what you would expect for any digital setup -- certainly not on par with high-end-analog, but quite serviceable. I haven't listened closely for noise yet. On range, using this unit as a receiver, the connection reaches 30 feet into another room -- line of site, no walls, some furniture. My "phone" is able to play MP3s through my high-end sound system. The downside is the laughably, comically short cable and plug lengths. While this is industry standard for cheap good like this, I cannot let them off the hook. The cable barely reaches from one end of my amplifier to the other, much less out the back and to the unit home next to the turntable. An extension solved this problem, but why should an extension be required? 6' cables would be better.

## Frequently Bought Together

- 1Mii B03Pro Bluetooth 5.3 Transmitter Receiver for Home Stereo TV, HiFi Wireless Audio Adapter with Audiophile DAC & AptX HD/Low Latency, Long Range, Optical RCA AUX 3.5mm Outputs/Inputs
- 1Mii B03S Bluetooth 5.3 Transmitter Receiver for TV Home Stereo, Wireless Audio Adapters with Audiophile DAC, aptX LL/HD/AD, Dual Link, Upgrade USB Drive Input, Optical RCA AUX 3.5mm Inputs/Outputs
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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-01-28*