---
product_id: 51251210
title: "ER3XR Extended Response Earphone,Black"
brand: "etymotic"
price: "Bs.3039"
currency: BOB
in_stock: true
reviews_count: 8
category: "Etymotic"
url: https://www.desertcart.bo/products/51251210-er3xr-extended-response-earphone-black
store_origin: BO
region: Bolivia
---

# 102 dB sensitivity Extended bass response Detachable MMCX gold-plated cable ER3XR Extended Response Earphone,Black

**Brand:** etymotic
**Price:** Bs.3039
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your audio game with bass that hits just right — don’t miss the sound revolution!

## Quick Answers

- **What is this?** ER3XR Extended Response Earphone,Black by etymotic
- **How much does it cost?** Bs.3039 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/51251210-er3xr-extended-response-earphone-black)

## Best For

- etymotic enthusiasts

## Why This Product

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

## Key Features

- • **Precision Machined Metal Build:** Durable anodized aluminum shell for premium feel and longevity
- • **Industry-Leading Noise Isolation:** 35-42 dB passive noise reduction to immerse you in your music anywhere
- • **Pro-Grade Sound with Everyday Comfort:** Slim, lightweight design with assorted ear tips for secure, deep fit
- • **Universal Compatibility & Convenience:** 4ft detachable cable with gold-plated 3.5mm plug fits all your devices
- • **Bass-Enhanced Balanced Armature Driver:** Single BA driver tuned for clean, detailed bass without muddiness

## Overview

The Etymotic ER3XR is a professional-grade in-ear monitor featuring a single balanced armature driver with enhanced bass response, 102 dB sensitivity, and exceptional passive noise isolation up to 42 dB. Its CNC-machined anodized aluminum body ensures durability and a sleek profile, while the detachable MMCX cable with gold-plated connectors offers convenience and longevity. Designed for audiophiles and discerning listeners, the ER3XR delivers precise, balanced sound with a warm bass boost, making it ideal for music lovers seeking studio-quality audio on the go.

## Description

The ER3XR is a single driver in-ear monitor (IEM) known for its high sensitivity. Its anodized aluminum shell is CNC machined to precise tolerances, resulting in a slim and lightweight design. The use of a single balanced armature (BA) driver in the ER3XR provides accurate audio reproduction without the complexity of crossovers, while the included user-replaceable cable adds to its convenience. Etymotic IEMs are widely recognized for their outstanding passive noise isolation, which can reduce outside noise by 35-42 dB depending on the eartips used and their depth of insertion. This level of isolation is higher compared to most custom IEMs that provide around 25-28dB attenuation and foam earplugs that provide up to 32dB reduction. The ER3XR is an ideal choice for audiophiles and budget-conscious consumers who are looking for easy-to-drive IEMs that provide enhanced bass compared to the neutral ER3SE. Both ER3 models, the ER3SE and ER3XR, use the same high-sensitivity, low-impedance balanced armature (BA) driver, meaning no amplifier is required. The main difference between the two models is their tuning, with the ER3SE having a flat frequency response while the ER3XR offers an emphasized bass that adds 1-2dB to the mid-bass and 3-4dB to the sub-bass. The ER3SE is suitable for audio creators and musicians who want precise and neutral audio reproduction, as well as for prosumers who prefer to hear their music as it was recorded. On the other hand, the ER3XR is favored by those who want to enjoy the extra bass in their music while maintaining balance. Etymotic's target frequency response graph aims for a "perceptibly flat" frequency response. This requires accounting for the resonance inside the average ear canal and the need for higher SPL in the 2-5k region (lower treble) to compensate. The resulting "hump" in the frequency response graph helps ensure that the eardrums perceive a flat frequency response for all frequencies.

Review: A nice step up from the HF5 - I have only had these about 30 minutes so far and will be amending my review as I break these in. But since no other reviews seem to be out there, I thought I'd put a bit of my first impressions out there. Though it is still early and these thoughts may shift some as I become more familiar with these. I'll also preface by saying I have not heard the ER4 range of headphones by Etymotic. But have owned the HF5 along with a collection of Sennhesier open back headphones and PSB closed back headphones. I upgraded to the ER3XR from the HF5. The HF5 has been my daily go to headphone to throw in my pocket and take on the go and to the office. I started looking into etymotic for passive noise isolation after listing to the "best" active noise canceling headphones out there and realizing ANC is garbage at best. If you are familiar with the HF5, the ER3 is a step up in the detail and separation in the sound. Maybe not a huge improvement for some, but it is very noticable to me on first listening. This is especially true in the treble detail. The biggest improvement however is in the bass region. The ER3XR clearly have a much needed bass boost in the low bass/sub bass frequency response compared to the HF5. It is very clean, separated and detailed bass and not overly bass heavy. Just gives a nice bit of increased support in the low end which was the main limiting factor with the HF5. The build quality is also significantly improved. The HF models have a plastic body and durable but thin cable. These are aluminum bodies with detachable cables which can be replaced. The cables are still quite thin but feel a bit more premium overall. This is nice as the cable seems to usually be the place where the HF models fail. In short, the HF5 are a durable but ultimately a "disposable" ....albeit costly, consumer product by build quality standards. These are approaching more of the professional build quality with replaceable parts so they should last longer. That should be enough of a reason to buy them over slightly cheaper monitors. If you are on a tight budget, go with the HF5 while they are on sale. If you can justify the additional $50-80 it is definitely worth it to go with the ER3. Based on the general impression so far, it recommend strongly that most people will really enjoy the ER3xr for listening to music. The flatter response of the ER3sr may be better suited for studio monitors or musicians monitoring live performances. Again, the slightly emphasized bass boost on the XR is far from what I'd call bass heavy. Definitely still very balanced sounding in my opinion but definitely not a flat response. One general comment/observation I've had on etymotic earphones is that they seem a little treble heavy at first and bass light with a very "digital" sound in general. They really open/warm up significantly after several hours of playback. I usually run them overnight with white, pink or brown noise playing through them to break the drivers in a bit. UPDATE #1: I've been using these for a few days now and absolutely love them. Based on the feedback I'm seeing online, these really are deserving of the SR series iem name. They are much more similar to the ER4 iems than they are different. It seems the biggest difference in these compared to the ER4 is that they are assembled in China instead of the US and the drivers are not matched to the same tight standards between balancing the left and right channels. However some of the Frequency Response graphs still show very good/great match between the drivers. The ER3 also appears to maybe have a bit more roll off in the high frequency response. this likely translates into slightly less upper high details. Comparing the bass of the ER4 and ER3 seem to rank from least bass to most bass ER4SR, ER3SE, ER4XR and ER3XR. In general the etymotic sound has historically been called cold as it emphasises treble detail and bass detail is light. The XR headphones have a raised bass response which caters towards a more mainstream audience response. The sound of the ER3XR may be a little too bass heavy for the purest/most balanced listeners. But I think most people will really enjoy the warmer sound signature of the clean and accurate bass. However, the ER3SE supposedly still has very good bass and should meet the needs of listeners really focusing on acoustic, jazz, classical or lightly scored vocals. The ER3XR is better suited for pop, rock, R&B and techno which would benefit from the stronger bass. Update: I did end up having a minor issue with these. Not long after receiving these I noticed a crackling/ popping sound coming through each driver when I was moving around.... with pretty much any source. So, it definitely seemed to be something related to the unit. I received a replacement pair and noticed the same exact thing. So, I contacted ETYMOTIC who was beyond accommodating in working to diagnose this. It was baffling to them also. In the end they could not diagnose what the issue was as both the original unit and replacement unit seemed to be within spec. At the end of this, they offered to send back my original unit with an upgraded cable (the ER4 cable) since the issue may have been associated with the cable. But this was never able to confirm since they couldn't reproduce the issue I was having. When I got the unit back, it seems the issue has been resolved. now I just have great sounding music and absolutely love these earphones. I'll clarify that I've used the unit in the same way as I did when noticing the crackling with both the original ER3 cable and the upgraded ER4 cable, but have not heard the crackling since. Long story short, Etymotics went above and beyond to try to help me out on this which speaks highly of their customer service and support. Sure you can buy cheaper brands, but you will not get this quality or support when you begin to have issues. Further these come with a 2 year warranty when industry standard is 6 months to 1 year for most earbuds if they have a warranty at all.
Review: Value-for-money audio reference - The ER3XR is a great IEM. It's essentially 90% of the ER4XR but for way cheaper, especially if you wait for discounts. The sound is balanced with no major emphasis on any particular frequency. As it is the XR version, the bass is present enough for the mix of music I listen to from EDM to orchestral, jazz and the whole gamut. It will not move air like dynamic driver earphones, especially bassy ones, but the quantity, quality and extension are fairly good to me. If you want physical bass you have to look elsewhere. The mids and trebles don't have any particular points to note, other than it may a be a bit forward than other IEMs. I'm alright as it doesn't get to the point of shoutiness or sibilance. Cymbals and other stuff up the range sizzle fairly close to the real thing. You can tell it isn't the real thing, but I have heard more expensive multi BA iems that can't sizzle better anyway. The 3 main drawbacks in terms of sound is that it lacks that little edge in overall clarity compared to the ER4XR (only apparent if you listen to both), like its expensive brother Etys generally do are not very strong in soundstage size or imaging, and the single BA can sound congested on busy tracks with a lot of detail e.g. complex orchestral passages or rock/metal pieces. That said, the ER3XR became congested less easily than I thought it would be so I don't see this as a big problem. People get etys only for the sound but there are some things to note when getting these. Most importantly is the fit. These need deeper insertion than any other iem on the market so some may not like the sensation/find it uncomfortable. A way that lets you try out the fit other than a shop demo would be to buy Ety's Ety Plugs or ER20XS earplugs as the triple flanges are identical, since earplugs are a great option for noisy work environments or at loud music venues. Also note the MMCX connector has a notch so you need to search specifically for Ety-compatible replacements (not any regular MMCX cable). Lastly, not all sellers are covered by Ety's 2 year warranty, so check out Ety's website for official resellers. No comments on accessories, exactly as pictured on Ety's ER3XR product website. What the site does not mention is the channel matching standard. An Ety rep has clarified on HeadFi that these are matched similarly as the HF5, which is matched at 100hz within a specified tolerance. The ER4 series has much tighter matching across a frequency range rather than just one frequency, but the ER3 matching is plenty good for most users and is probably on par or better than most other IEM manufacturers. Couldn't pick up any issues when listening to mine. Those audiophiles who want more reading can search on HeadFi/Reddit on adding resistors to bring the FR closer to an ER4XR, matching (mentioned above) and other discussions.

## Features

- Enhanced and extended bass response. Sensitivity (@1 kHz) SPL at 0.1v-102 dB
- Precision machined metal bodies; high performance balanced Armature micro-drivers
- 4ft reinforced detachable cables with 3.5mm Gold Plated stereo Plug and MMCX connectors
- Assorted ear tips for 35-42db of external noise isolation; 120dB Max output
- Frequency Response - 20 Hz - 16 kHz and Impedance - 22 Ohms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076652HPH |
| Age Range (Description) | Adult |
| Audio Driver Type | Balanced Armature Driver |
| Best Sellers Rank | #22,619 in Electronics ( See Top 100 in Electronics ) #1,394 in Earbud & In-Ear Headphones |
| Cable Feature | Detachable |
| Compatible Devices | Laptops, Desktops, Tablets, Telephones, Smart Speaker, Televisions, Cellphones |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | Media Control |
| Controller Type | Media Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.0 4.0 out of 5 stars (427) |
| Date First Available | October 5, 2017 |
| Earpiece Shape | Rounded Tip |
| Generation | 2 |
| Global Trade Identification Number | 00846430002111 |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | Headphones, case, tip pack, manual |
| Input Device Interface | Audio jack |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Item model number | ER3XR |
| Manufacturer | Etymotic Research |
| Material | Metal |
| Model Name | ER3XR |
| Noise Control | Sound Isolation |
| Noise Control Features | sound_isolation |
| Number of Items | 1 |
| Product Dimensions | 2 x 3.75 x 7 inches |
| Recommended Uses For Product | Music |
| Sensitivity | 102 dB |
| Series Number | 3 |
| Special Feature | Etymotic designs products to measure, protect and improve hearing, and enhance the listening experience of music lovers everywhere. Audio engineers, musicians and audiologists at Etymotic have generated over 100 patents issued and pending. |
| Style | Contemporary |
| Supports Bluetooth Technology | No |
| UPC | 846430002111 |
| Units | 1.0 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Etymotic
- **Color:** Black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 22 Ohms

## Images

![ER3XR Extended Response Earphone,Black - Image 1](https://m.media-amazon.com/images/I/51QsS3-Pq6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A nice step up from the HF5
*by U***E on December 8, 2017*

I have only had these about 30 minutes so far and will be amending my review as I break these in. But since no other reviews seem to be out there, I thought I'd put a bit of my first impressions out there. Though it is still early and these thoughts may shift some as I become more familiar with these. I'll also preface by saying I have not heard the ER4 range of headphones by Etymotic. But have owned the HF5 along with a collection of Sennhesier open back headphones and PSB closed back headphones. I upgraded to the ER3XR from the HF5. The HF5 has been my daily go to headphone to throw in my pocket and take on the go and to the office. I started looking into etymotic for passive noise isolation after listing to the "best" active noise canceling headphones out there and realizing ANC is garbage at best. If you are familiar with the HF5, the ER3 is a step up in the detail and separation in the sound. Maybe not a huge improvement for some, but it is very noticable to me on first listening. This is especially true in the treble detail. The biggest improvement however is in the bass region. The ER3XR clearly have a much needed bass boost in the low bass/sub bass frequency response compared to the HF5. It is very clean, separated and detailed bass and not overly bass heavy. Just gives a nice bit of increased support in the low end which was the main limiting factor with the HF5. The build quality is also significantly improved. The HF models have a plastic body and durable but thin cable. These are aluminum bodies with detachable cables which can be replaced. The cables are still quite thin but feel a bit more premium overall. This is nice as the cable seems to usually be the place where the HF models fail. In short, the HF5 are a durable but ultimately a "disposable" ....albeit costly, consumer product by build quality standards. These are approaching more of the professional build quality with replaceable parts so they should last longer. That should be enough of a reason to buy them over slightly cheaper monitors. If you are on a tight budget, go with the HF5 while they are on sale. If you can justify the additional $50-80 it is definitely worth it to go with the ER3. Based on the general impression so far, it recommend strongly that most people will really enjoy the ER3xr for listening to music. The flatter response of the ER3sr may be better suited for studio monitors or musicians monitoring live performances. Again, the slightly emphasized bass boost on the XR is far from what I'd call bass heavy. Definitely still very balanced sounding in my opinion but definitely not a flat response. One general comment/observation I've had on etymotic earphones is that they seem a little treble heavy at first and bass light with a very "digital" sound in general. They really open/warm up significantly after several hours of playback. I usually run them overnight with white, pink or brown noise playing through them to break the drivers in a bit. UPDATE #1: I've been using these for a few days now and absolutely love them. Based on the feedback I'm seeing online, these really are deserving of the SR series iem name. They are much more similar to the ER4 iems than they are different. It seems the biggest difference in these compared to the ER4 is that they are assembled in China instead of the US and the drivers are not matched to the same tight standards between balancing the left and right channels. However some of the Frequency Response graphs still show very good/great match between the drivers. The ER3 also appears to maybe have a bit more roll off in the high frequency response. this likely translates into slightly less upper high details. Comparing the bass of the ER4 and ER3 seem to rank from least bass to most bass ER4SR, ER3SE, ER4XR and ER3XR. In general the etymotic sound has historically been called cold as it emphasises treble detail and bass detail is light. The XR headphones have a raised bass response which caters towards a more mainstream audience response. The sound of the ER3XR may be a little too bass heavy for the purest/most balanced listeners. But I think most people will really enjoy the warmer sound signature of the clean and accurate bass. However, the ER3SE supposedly still has very good bass and should meet the needs of listeners really focusing on acoustic, jazz, classical or lightly scored vocals. The ER3XR is better suited for pop, rock, R&B and techno which would benefit from the stronger bass. Update: I did end up having a minor issue with these. Not long after receiving these I noticed a crackling/ popping sound coming through each driver when I was moving around.... with pretty much any source. So, it definitely seemed to be something related to the unit. I received a replacement pair and noticed the same exact thing. So, I contacted ETYMOTIC who was beyond accommodating in working to diagnose this. It was baffling to them also. In the end they could not diagnose what the issue was as both the original unit and replacement unit seemed to be within spec. At the end of this, they offered to send back my original unit with an upgraded cable (the ER4 cable) since the issue may have been associated with the cable. But this was never able to confirm since they couldn't reproduce the issue I was having. When I got the unit back, it seems the issue has been resolved. now I just have great sounding music and absolutely love these earphones. I'll clarify that I've used the unit in the same way as I did when noticing the crackling with both the original ER3 cable and the upgraded ER4 cable, but have not heard the crackling since. Long story short, Etymotics went above and beyond to try to help me out on this which speaks highly of their customer service and support. Sure you can buy cheaper brands, but you will not get this quality or support when you begin to have issues. Further these come with a 2 year warranty when industry standard is 6 months to 1 year for most earbuds if they have a warranty at all.

### ⭐⭐⭐⭐⭐ Value-for-money audio reference
*by G***0 on January 5, 2019*

The ER3XR is a great IEM. It's essentially 90% of the ER4XR but for way cheaper, especially if you wait for discounts. The sound is balanced with no major emphasis on any particular frequency. As it is the XR version, the bass is present enough for the mix of music I listen to from EDM to orchestral, jazz and the whole gamut. It will not move air like dynamic driver earphones, especially bassy ones, but the quantity, quality and extension are fairly good to me. If you want physical bass you have to look elsewhere. The mids and trebles don't have any particular points to note, other than it may a be a bit forward than other IEMs. I'm alright as it doesn't get to the point of shoutiness or sibilance. Cymbals and other stuff up the range sizzle fairly close to the real thing. You can tell it isn't the real thing, but I have heard more expensive multi BA iems that can't sizzle better anyway. The 3 main drawbacks in terms of sound is that it lacks that little edge in overall clarity compared to the ER4XR (only apparent if you listen to both), like its expensive brother Etys generally do are not very strong in soundstage size or imaging, and the single BA can sound congested on busy tracks with a lot of detail e.g. complex orchestral passages or rock/metal pieces. That said, the ER3XR became congested less easily than I thought it would be so I don't see this as a big problem. People get etys only for the sound but there are some things to note when getting these. Most importantly is the fit. These need deeper insertion than any other iem on the market so some may not like the sensation/find it uncomfortable. A way that lets you try out the fit other than a shop demo would be to buy Ety's Ety Plugs or ER20XS earplugs as the triple flanges are identical, since earplugs are a great option for noisy work environments or at loud music venues. Also note the MMCX connector has a notch so you need to search specifically for Ety-compatible replacements (not any regular MMCX cable). Lastly, not all sellers are covered by Ety's 2 year warranty, so check out Ety's website for official resellers. No comments on accessories, exactly as pictured on Ety's ER3XR product website. What the site does not mention is the channel matching standard. An Ety rep has clarified on HeadFi that these are matched similarly as the HF5, which is matched at 100hz within a specified tolerance. The ER4 series has much tighter matching across a frequency range rather than just one frequency, but the ER3 matching is plenty good for most users and is probably on par or better than most other IEM manufacturers. Couldn't pick up any issues when listening to mine. Those audiophiles who want more reading can search on HeadFi/Reddit on adding resistors to bring the FR closer to an ER4XR, matching (mentioned above) and other discussions.

### ⭐⭐⭐⭐ My second pair of my favorite earphones
*by I***. on April 14, 2020*

I bought my first pair and an extra cable about a year ago; I haven't used the replacement cable but one of the ears (right) was cutting in and out so I ordered another as a backup. After reseating the right earbud in the old one, they work fine again! So now I have an extra pair for the apocalypse. The sound quality is precise and clear on these; don't expect Beats level of bass, instead expect an earphone made by a hearing aid company that undoubtedly puts emphasis on clarity and authentic reproduction. Words of note for new buyers; when this pair arrived, the left earbud didn't work. I switched it with the left one from the old pair and it worked. It turns out the cable was not seated correctly. If you get a pair and one or both earbuds don't work, try disconnecting and reconnecting it to see if you can procure a better connection. The other thing; man these sounded terrible out of the box. I was using the small silcone tips that come installed on them and they just DON'T fit my ears. ALL of the bass was leaking out and they sounded like Apple earbuds circa 2007. I switched to the (preferred) memory foam tips and the sound was impactful and rich like I expected from my previous experience with the ER3XR. If these sound bad out of the box for you, make sure to experiment with the different tips and get a good fit before you write these off as overpriced EarPods. Oh and the obligatory "these fit different than every earbud on earth so you may not like them" comment. I love them, they feel secure and provide AMAZING noise reduction, but they do squeeze on the inside of your ear, so YMMV. This is why the 3/5 stars on comfort; I love them, but many will NOT.

## Frequently Bought Together

- Etymotic ER3XR Extended Response Earphone,Black
- Apple MFi Certified 2 Pack Lightning to 3.5 mm Headphone Jack Adapter for iPhone, iPhone Aux Adapter Converter Dongle Audio Cable Compatible with iPhone 14 13 12 11 X XS 8 7
- OneKer USB Type C to 3.5mm Headphone Jack Adapter, (2-Pack) USB C to Aux Female Audio Dongle Cable Cord Compatible with iPhone 16/15 Pro/15 Plus/15 Pro Max,iPad Pro,MacBook, Samsung Galaxy S24 S23 S22

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.bo/products/51251210-er3xr-extended-response-earphone-black](https://www.desertcart.bo/products/51251210-er3xr-extended-response-earphone-black)

---

*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-22*