---
product_id: 85639500
title: "Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones"
brand: "airfrex"
price: "AED 1"
currency: AED
in_stock: false
reviews_count: 13
url: https://www.desertcart.ae/products/85639500-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-and-2
store_origin: AE
region: United Arab Emirates
---

# Qualcomm Bluetooth 5.3 for lossless audio Custom fit for Sennheiser HD series Texas Instrument amp for rich sound Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones

**Brand:** airfrex
**Price:** AED 1
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your Sennheiser experience—wireless freedom meets audiophile precision!

## Quick Answers

- **What is this?** Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones by airfrex
- **How much does it cost?** AED 1 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/85639500-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-and-2)

## Best For

- airfrex enthusiasts

## Why This Product

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

## Key Features

- • **Bass Boost On Demand:** Toggle a preset EQ bass enhancement with a simple double-click to customize your sound signature instantly.
- • **Next-Gen Bluetooth 5.3:** Experience ultra-stable, lossless wireless streaming with the latest Qualcomm chipset—no compromises on audio quality.
- • **Hands-Free Calls Made Easy:** Integrated microphone and one-button call control keep you connected without missing a beat.
- • **Audiophile-Grade Amplification:** Built-in Texas Instrument headphone amp delivers dynamic, detailed sound that drives high-impedance headphones effortlessly.
- • **Tailored for Sennheiser HD Series:** Seamlessly transforms your wired HD598/HD599 headphones into wireless powerhouses.

## Overview

This Bluetooth adapter is custom-engineered for Sennheiser HD series headphones, combining a high-performance Texas Instrument amplifier with Qualcomm Bluetooth 5.3 for lossless wireless audio. It features an optional bass boost, built-in microphone for calls, and a 2.5mm jack connector, delivering premium sound quality and seamless wireless convenience tailored for discerning audiophiles.

## Description

Shop Airfrex Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones. Free delivery and returns on eligible orders.

Review: Excellent - Bought this for my Wired AKG's and it works great. Fantastic sound quality and more than enough volume. Fits the headphones well and is very unobtrusive. Very impressed and much cheaper than buying wireless headphones. Highly recommended product if this is the type of thing you are looking for.
Review: Not the SEHD. Airfrex got the silk printing on it wrong - I have ordered this twice as the first time I ordered I received the wrong version, AIU5 instead of SEHD. Sent it back and ordered again and again got the AIU5 again. Confused. The AIU5 does at least have a 2.5mm jack so thats something. I have the Sennheiser 599s and thought eh, I'll try it. I paired to to my Samsung phone, turned on my music and it worked. Wanted to test the range so left my phone on my desk and walked downstairs, I live in a 3 floor house and desk is on the top floor and when I got to the ground floor the connection started going spotty so range seems good. I then paired it to my pc and played some music, that works nicely as does it when watching YouTube or movies and with a bit of work got it working with games, I had to quit the game, disconnect and then reconnect the headphones, select what I used as default when headphones are connected and was testing once in game I can both listen to music quietly and hear the game and the sound is still perfect through my 599s. I decided I'd keep the AIU5 as at least it works and I don't have to go through the returns hassle / order again/ hope its the right one this time/ oh... disappointment. Edit; I reached out to Airfrex and it turns out this is the right model it was a mistake with printing on the end of it but the AUI5 is the right one for my headphones. I wonder if they will fix this issue. Edit 20th May 2025... I've had this for almost 2 years and it has worked well, but now, it's become an agoraphobic adapter, doesn't like being outside. When outdoors the adapter gives off a constant beeping sound every 30 seconds, it's not the low battery beeping it's a 1 second single beep but happens consistently when using out and about, at home it doesn't do that and works normally. I am stumped at what could be causing this. Edit June 6th 2025. I brought a second one and this one now has a voice that tells you power on and off, connected and disconnect and low battery. It can be charged when in use now too. Will see how long this new one lasts.

## Features

- Custom Made for Sennheiser HD Series Wired Headphones. This wireless music adapter works as a wireless audio streaming converter for the Momentum series headphones, Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphone replacement cable cord connector and converter.
- Excellent Sound Quality. This Bluetooth audio receiver has a dedicated Texas Instrument headphone amplifier chipset built-in which makes it more dynamic and rich in details. The output is much more powerful, it can drive the over ear headphones with larger impedance, so this is a wireless receiver plus a headphone amplifier and it is perfect match for Sennheiser HD series headphones.
- Optional Bass Boost Feature. Airfrex Bluetooth receiver has preset EQ function which allows users to turn on or turn off the bass enhancement feature if needed, this feature can compensate the bass performance for their headphones or speakers, users just need a simple double click to switch this function.
- Latest Qualcomm Bluetooth 5.3 Chipset. This wireless stereo adapter applies the most advanced Qualcomm Bluetooth chip which ensures this is lossless in audio transmission which is a huge difference from those low quality Bluetooth adapters. You need a high quality headphone adapter for a good Sennheiser headphone.
- Built-in Microphone for Phone Call. Our music adapter also has built-in Microphone which allow the users to pick up or end a phone call by a simple press on the button, so they won’t miss any phone call even during music listening.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GZWN4FB |
| AntennaDescription | Satellite |
| Audio Input | 3.5 mm AUX |
| Audio Output Mode | Stereo |
| Audio Output Type | Headphone |
| Battery Charge Time | 1.5 Hours |
| Battery Types | Lithium-Ion Polymer |
| Battery Weight | 2.6 Grams |
| Best Sellers Rank | 66,912 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2,014 in Audio & Video Adapters |
| Bluetooth support? | Yes |
| Brand Name | Airfrex |
| Colour | Silver |
| Compatibility Options | Bluetooth enabled devices (headphones, speakers, TV, car stereo, etc.) |
| Compatible Devices | Sennheiser HD598, HD598Cs, HD598SE, HD595, HD599, HD559, HD569, HD579, HD518, HD558 Headphones |
| Connectivity Technology | Bluetooth |
| Connector Type Used on Cable | Auxiliary |
| Control Method | Touch |
| Control Type | Touch Control |
| Controller Type | Button Control |
| Customer Reviews | 3.6 3.6 out of 5 stars (59) |
| Data Link Protocol | Bluetooth |
| Enclosure Material | Silver |
| Hardware Interface | Bluetooth |
| Human Interface Input | Touchscreen |
| Includes Remote | No |
| Installation Type | wireless |
| Item Dimensions L x W x H | 5.5L x 4.8W x 1.2H centimetres |
| Item Weight | 15 Grams |
| Lithium Battery Energy Content | 0.4 Watt Hours |
| Lithium Battery Weight | 0.2 Grams |
| Manufacturer | Forient Technology Co., Limited |
| Media Types | MP3, WAV, AAC, FLAC |
| Model Name | Airfrex SEHD |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Number of Ports | 1 |
| Outer Material | Plastic or Rubber |
| Power Source | Powered by battery and electric cable |
| Product Features | Automatic On/Off, Built-In Microphone, Hands-Free Calls, Low Latency, Noise Cancellation |
| Product Warranty | One Year Warranty |
| Rechargeable Battery Included | Yes |
| Supported Application | Any Audio Application |
| Supported Standards | Bluetooth 5.3 |
| UPC | 708210350358 |
| Unit Count | 1.0 count |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Airfrex
- **Connectivity technology:** Bluetooth
- **Material:** Silver
- **Power source:** Powered by battery and electric cable
- **Special feature:** Automatic On/Off, Built-In Microphone, Hands-Free Calls, Low Latency, Noise Cancellation

## Images

![Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones - Image 1](https://m.media-amazon.com/images/I/51j06HoUsDL.jpg)
![Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones - Image 2](https://m.media-amazon.com/images/I/61uieJfe5vL.jpg)
![Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones - Image 3](https://m.media-amazon.com/images/I/61aCzZ+YOaL.jpg)
![Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones - Image 4](https://m.media-amazon.com/images/I/61ENHpMynvL.jpg)
![Bluetooth Adapter and Wireless Audio Receiver with Microphone and 2.5mm Jack for Sennheiser HD598 / HD598Cs / HD598SE / HD595 / HD599 / HD559 / HD569 / HD579 / HD518 / HD558 Headphones - Image 5](https://m.media-amazon.com/images/I/61qDQPU7LML.jpg)

## Questions & Answers

**Q: How long does the battery takes to charge and how long it last ?**
A: It takes one hour and a half for a full charge and every full charge last 6-8 hours.

**Q: How Heavy is it ?**
A: It weights 10 grams.

**Q: Does it have dual link feature ?**
A: Yes, it has dual link functions which means this adapter can pair with two devices ( two phones or tablets ) at the same time.

**Q: Can I pick up any phone call from this Bluetooth adapter when I am listening music on the phone ?**
A: Yes, it has microphone built-inside. You can pick up or reject any phone calls via the button

**Q: Is it powerful enough to drive the Sennheiser Headphones ?**
A: Yes, It has dedicated Headphone DAC ( amplifier ) built-inside.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent
*by D***N on 17 November 2018*

Bought this for my Wired AKG's and it works great. Fantastic sound quality and more than enough volume. Fits the headphones well and is very unobtrusive. Very impressed and much cheaper than buying wireless headphones. Highly recommended product if this is the type of thing you are looking for.

### ⭐⭐⭐⭐ Not the SEHD. Airfrex got the silk printing on it wrong
*by S***H on 29 October 2023*

I have ordered this twice as the first time I ordered I received the wrong version, AIU5 instead of SEHD. Sent it back and ordered again and again got the AIU5 again. Confused. The AIU5 does at least have a 2.5mm jack so thats something. I have the Sennheiser 599s and thought eh, I'll try it. I paired to to my Samsung phone, turned on my music and it worked. Wanted to test the range so left my phone on my desk and walked downstairs, I live in a 3 floor house and desk is on the top floor and when I got to the ground floor the connection started going spotty so range seems good. I then paired it to my pc and played some music, that works nicely as does it when watching YouTube or movies and with a bit of work got it working with games, I had to quit the game, disconnect and then reconnect the headphones, select what I used as default when headphones are connected and was testing once in game I can both listen to music quietly and hear the game and the sound is still perfect through my 599s. I decided I'd keep the AIU5 as at least it works and I don't have to go through the returns hassle / order again/ hope its the right one this time/ oh... disappointment. Edit; I reached out to Airfrex and it turns out this is the right model it was a mistake with printing on the end of it but the AUI5 is the right one for my headphones. I wonder if they will fix this issue. Edit 20th May 2025... I've had this for almost 2 years and it has worked well, but now, it's become an agoraphobic adapter, doesn't like being outside. When outdoors the adapter gives off a constant beeping sound every 30 seconds, it's not the low battery beeping it's a 1 second single beep but happens consistently when using out and about, at home it doesn't do that and works normally. I am stumped at what could be causing this. Edit June 6th 2025. I brought a second one and this one now has a voice that tells you power on and off, connected and disconnect and low battery. It can be charged when in use now too. Will see how long this new one lasts.

### ⭐ 4 weeks of and the battery will no longer charge
*by G***A on 28 March 2024*

Worked well while it lasted but now the battery will no longer charge. You can plug it in, red light comes up indicating it's charging then goes off. If you leave it on when you go to use it it'll report 20% battery and then die within 3 minutes.

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*Product available on Desertcart United Arab Emirates*
*Store origin: AE*
*Last updated: 2026-05-11*