The Sennheiser BTD700 is a Bluetooth USB adapter: a 2.2 g USB-C dongle (USB-A adapter included) that sends audio from a PC or laptop to Bluetooth headphones or earbuds without relying on the computer's built-in radio. It suits desktop users and anyone whose older or work laptop keeps dropping connections.
Who the Sennheiser BTD700 is for
Desktop PC users: Plug it into a USB port and pair Bluetooth headphones or earbuds — no driver hunting.
Older or work laptops: It's a workaround when the built-in Bluetooth radio keeps dropping the connection.
Sennheiser headphone owners: Sennheiser designed it to get the most out of its own wireless headphones, and it still works as a general Bluetooth audio dongle.
Computers with USB-A ports: The dongle itself is USB-C, and a USB-A to USB-C adapter comes in the box.
Sennheiser BTD700 key specs
Connector: USB-C (USB-A adapter included)
Weight: 2.2 g (dongle)
Works with: PCs and laptops
Pairs with: Bluetooth headphones and earbuds
In the box: BTD 700 Bluetooth USB dongle, USB-A to USB-C adapter, Quick guide, Safety guide
Color: Black
Free shipping and 45-day returns. TonePier sells genuine Sennheiser stock — your BTD700 is brand new and fully supported, with a 45-day return window.
Sennheiser BTD700 vs similar options
vs FiiO Air Link: A USB-C Bluetooth 6.0 transmitter that FiiO aims at phones and handheld game consoles; the BTD700 is the one pitched at PCs and laptops.
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.
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