--- product_id: 248294494 title: "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" brand: "airfrex" price: "£75.33" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/248294494-airfrex-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-2 store_origin: GB region: United Kingdom --- # Texas Instrument amp chipset for rich sound Built-in mic for seamless hands-free calls Bass Boost EQ toggle for customizable audio 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 **Brand:** airfrex **Price:** £75.33 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your Sennheiser—wireless sound, wired quality. ## Quick Answers - **What is this?** 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 by airfrex - **How much does it cost?** £75.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/248294494-airfrex-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-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 - • **Hands-Free Convenience:** Integrated microphone lets you answer or end calls with a single button press—stay connected without missing a beat. - • **Customizable Bass Boost:** Toggle the preset EQ bass enhancement to match your mood or music genre—feel every beat or keep it clean. - • **Audiophile-Grade Clarity:** Texas Instrument amplifier chipset delivers dynamic, detailed sound that elevates your Sennheiser experience. - • **Seamless Wireless Freedom:** Latest CSR Bluetooth 4.1 chipset ensures lossless, lag-free audio transmission for uninterrupted listening. - • **Ultra-Compact & Lightweight:** At just 15g and pocket-sized, this sleek silver adapter blends effortlessly with your premium headphones and lifestyle. ## Overview The Airfrex Bluetooth Adapter transforms your Sennheiser HD series headphones into a wireless powerhouse with a Texas Instrument amplifier for superior sound, customizable bass boost, and CSR Bluetooth 4.1 for lossless audio. Featuring a built-in microphone for hands-free calls and a compact, lightweight design, it’s engineered for professionals who demand premium audio and seamless connectivity on the go. ## Description 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 ## Features - 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 po - 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 pe - Latest CSR Bluetooth 4.1 Chipset. This wireless stereo adapter applies the most advanced CSR Bluetooth chip which ensures this is lossless in audio transmission which is a huge difference from those l - 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 ca ## Technical Specifications | Specification | Value | |---------------|-------| | Brand Name | Airfrex | | Colour Name | Silver | | Peak Power Handling - Speakers | 20 Watts | | Product Dimensions | 6 x 5 x 2 cm; 15 g | | Batteries | 1 Lithium Polymer batteries required. (included) | | Item model number | SEHD | | Manufacturer | Airfrex | | Country of Origin | USA | | Item Weight | 15 g | ## Product Details - **Special Feature:** Built-in Microphone - **Brand:** Airfrex - **Power Source:** Adapter - **Item Weight:** 15 Grams - **Colour:** Silver ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51PgvD+Pr7L.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61Oe+e5JlUL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61VI0x2JGvL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61FlLCbTw3L.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61PLRNQ36wL.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. ## Frequently Bought Together - 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 - SENNHEISER HD 599 Open Back Headphone, Ivory - NewFantasia Replacement Audio Upgrade Cable Compatible with Sennheiser HD598, HD598Cs, HD560s, HD598SE, HD620S, HD400PRO, HD599, HD569, HD579, HD505 Headphones 1.2m/4feet --- ## 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.co.uk/products/248294494-airfrex-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-2](https://www.desertcart.co.uk/products/248294494-airfrex-bluetooth-adapter-and-wireless-audio-receiver-with-microphone-2) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-15*