Sennheiser Unveils High-Fidelity Bluetooth Dongle for Seamless Audio Experience
By HiFi Editorial24 February 2026
Key Highlights
Compact USB-C dongle with advanced Bluetooth audio, supporting aptX Adaptive and aptX Lossless codecs for 24-bit/96 kHz playback.
Game Mode reduces latency to as low as 30ms, enhancing audio-visual synchronization for gaming.
Auracast compatibility enables simultaneous streaming to multiple devices for shared listening.
Sennheiser has unveiled the BTD 700, a compact Bluetooth dongle that introduces advanced wireless audio capabilities to virtually any device. Engineered for seamless compatibility with over-ear and in-ear headphones, this plug-and-play solution offers state-of-the-art support for high-resolution codecs, low-latency transmission, and expanded Bluetooth functionality.
Weighing just 2.2 grams and measuring a mere 24mm in length, this USB-C dongle is smaller than many flash drives, yet it packs impressive features under its minimalist design. For broader compatibility, it also includes a USB-C to USB-A adapter, ensuring usability with older laptops and desktops. The device promises to elevate wireless audio on smartphones, tablets, and PCs alike, making it an accessible and versatile option for high-fidelity sound.
Among its standout features, the BTD 700 supports aptX Adaptive and aptX Lossless codecs, enabling audio playback at up to 24-bit/96 kHz resolution—qualities often reserved for wired connections. This makes it an ideal companion for Sennheiser's Momentum and select Accentum headphone models, which are already equipped to handle these advanced codecs. It effectively bridges the gap for devices lacking native support for modern Bluetooth audio protocols.
Game Mode is tailored for low-latency scenarios, achieving audio delays as low as 30 milliseconds with compatible headphones. This ensures tight synchronization between sound and visuals, particularly valuable in dynamic gaming environments. Additionally, Auracast compatibility expands its utility by allowing simultaneous audio streaming to multiple Auracast-enabled devices, making it suitable for communal entertainment or learning setups.
Built on Bluetooth 5.4 technology, the BTD 700 operates as a class-compliant audio adapter, offering consistent performance across multiple platforms, including Android, iOS, Windows, and macOS. Whether enhancing music, video calls, or gameplay, this dongle pairs advanced sound quality with unmatched convenience. The Sennheiser BTD 700 is now available in Europe, priced at €49.90.
HiFi Weekly Digest
New gear, best reads, and deals — every Friday.
