The Sennheiser BTD 700 is a plug-and-play USB-C Bluetooth dongle that transmits over Bluetooth 5.4 with aptX Adaptive, aptX Lossless and Auracast, plus a dedicated low-latency mode. It's for owners of aptX headphones whose computer's built-in Bluetooth tops out at SBC or AAC.
Who the Sennheiser BTD 700 is for
aptX headphone owners: If your headphones support aptX Adaptive or aptX Lossless, the BTD 700 lets them actually run at their best.
Work laptops and phones: It's plug-and-play over USB-C and sidesteps a built-in Bluetooth stack that stops at SBC or AAC.
Steam Deck and gaming: A dedicated low-latency mode keeps games and video in sync on a Steam Deck or a console-adjacent setup.
Skip it if: you want to plug in wired IEMs — the BTD 700 transmits to Bluetooth headphones and is not a wired DAC.
Sennheiser BTD 700 key specs
Type: USB Bluetooth transmitter (sends audio to Bluetooth headphones)
Connector: USB-C
Bluetooth: 5.4
Codecs: aptX Adaptive, aptX Lossless
Auracast: Supported
Low-latency mode: Dedicated, for games and video
Setup: Plug-and-play
Genuine Sennheiser stock. Free shipping on every order, 45-day returns.
Sennheiser BTD 700 vs similar options
vs FiiO Air Link: Runs Bluetooth 6.0 and is pitched at handheld game consoles; the BTD 700 (Bluetooth 5.4) is the one that spells out aptX Lossless, aptX Adaptive, Auracast and a dedicated low-latency mode.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
Choosing a selection results in a full page refresh.
