Anyone know what the "charging off" switch is for? Why would I turn the charging ability off? The unit plays music fine with it off or on?

1) you need to switch it on to charge the unit. 2) you can set it to off to prevent it drains battery of your phone when you connect it (via usb-c not bluetooth) to your phone. 3) the unit plays music fine regardless of this switch's setting. hope it helps.

For those on ios (iphone or ipad), are you able to save your 3 custom eq settings on to btr7 from fiio control? heard there was a bug.

This is bad advice. The app is extremely easy to use and the parametric equalizer is perhaps the best feature and the reason I purchased this amp. I use iOS and saving the settings is easy and practically automatic. The custom EQ is only adjustable through the app. I’m not sure why so many people have problems using it. It seems so simple to me. My only issue is when you reset the custom EQ to default (flat), it resets all 3 at once. It would be better if you could individually reset each one.

Can this be charged while in use?

Sure can. This little amp is amazing!

Will this product increase the frequency range of my headphones? currently 20-40,000 khz, will this get it down to 10khz and improve dynamics qualiy

Your headphones' current range is 20hz to 40,000 Hz or 20hz to 40 kHz. It is already past 10 kHz, and will not reduce it. What this device will do is improve sound quality with less background noise, or hiss and so more dynamic range.

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BTR7 Headphone Amp Bluetooth Receiver High Resolution Portable DAC Supports MQA/LDAC/aptX HD 384K/32Bit DSD256 for Phone/PC/Car/Home Audio

Product ID: 458570626

Details

Brand
FiiO
Interface Type
USB
Mounting Type
Cable Mount
Number of Channels
2
Number of Pins
8

🎧Dual 3.5mm + 4.4mm Balanced Outputs

💽384kHz/32Bit DSD256 & MQA 8x Decoding

🔊Hi-Res Bluetooth 5.1 w/ LDAC & aptX HD

Bs.4329

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Description

🎶 Elevate Every Beat — Portable Hi-Res Audio, Anywhere You Go!

DUAL OUTPUT VERSATILITY - Switch effortlessly between 3.5mm single-ended and 4.4mm balanced outputs for richer, more detailed audio tailored to your headphones.
CUTTING EDGE DAC PERFORMANCE - Powered by dual ES9219C DAC chips and XMOS XUF208 decoding, enjoy ultra-high resolution PCM 384kHz and native DSD256 playback.
CRYSTAL CLEAR CALLS CONTROLS - Built-in cVc 8.0 noise cancellation and microphone support ensure pristine voice calls and easy inline control compatibility.
MQA MASTER QUALITY AUTHENTICATED - Unlock studio-quality sound with full MQA 8x rendering, bringing your favorite tracks to life with unmatched clarity and depth.
AUDIOPHILE GRADE WIRELESS FREEDOM - Experience crystal-clear, lossless sound with Bluetooth 5.1 supporting LDAC, aptX HD, and AAC for seamless high-res streaming.

The FiiO BTR7 is a compact, high-resolution Bluetooth headphone amplifier and DAC that supports advanced wireless codecs including LDAC and aptX HD. Featuring dual 3.5mm and 4.4mm outputs, it delivers balanced and single-ended audio with exceptional clarity. Equipped with dual ES9219C DACs and XMOS decoding, it handles PCM up to 384kHz, native DSD256, and MQA 8x rendering for studio-quality sound on the go. Ideal for phones, PCs, cars, and home audio setups, it also includes cVc 8.0 noise cancellation and a built-in microphone for superior call quality.

Specifications

ASIN	B09ZKJ5P5R
Audio Output Mode	Single-Ended, Balanced
Best Sellers Rank	#24,791 in Electronics ( See Top 100 in Electronics ) #43 in Headphone Amps
Brand	FiiO
Brand Name	FiiO
Compatible Devices	Phones, PC, Car, Home Audio Systems, Bluetooth-enabled Devices
Customer Reviews	4.4 out of 5 stars 484 Reviews
Interface	USB
Interface Type	USB
Item Dimensions L x W	1.56"L x 3.29"W
Item Weight	45 g
Manufacturer	FiiO
Model	SFNS2031
Mounting Type	Cable Mount
Number of Channels	2
Number of Items	1
Number of Pins	8
Part Number	BTR7
Product Dimensions	1.56"L x 3.29"W

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Bs.4329

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

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