Sennheiser BTD 600 Bluetooth USB Adapter High-fidelity wireless headphones let you connect to almost any device, including computers. But you may have to first activate Bluetooth or configure settings on your PC or Mac. You also might not have a high-quality audio codec installed. A dedicated audio dongle can help. But which one is right for your headphones With the BTD 600, you get a Bluetooth dongle specially developed by the audio experts at Sennheiser to be a perfect match for all our Bluetooth-enabled products. It’s the easy way to get the best performance your headphones can offer. Like a cable without the wires The BTD 600 is a USB-A dongle that comes with a USB-C adapter and works great on both Windows PCs and Macs. Just plug it in, pair your headphones once, and you’re done. You can even plug the BTD 600 into a different computer and continue listening - without re-pairing. You get Bluetooth 5.2 and the latest aptX audio codecs for stable, high-quality sound. The call and music controls on your headphones still work, too. And with audio this good, it’s like having an invisible cable. Great for media or communications The BTD 600 works great for listening to music, making calls, and watching videos. Advanced aptX codecs can transmit near-CD quality for listening to music or low latency for excellent voice sync for watching videos and making calls. Depth: 21 MM Height: 100 MM Width: 80 MM Bluetooth: Y Plug it in, pair it, and forget it — Easy-to-use USB dongle makes it super simple to connect Bluetooth® headphones to your PC or Mac. Great for entertainment and communications — lower latency helps keep audio and video in sync for a seamless experience. Use your headphone controls — Use the controls on your headphones for media and calls Swap between multiple PCs or Macs — The BTD 600 stays paired so you can simply plug it into another device and continue using your headphones. USB-A or USB-C – A convenient USB-C adapter attaches to the USB-A dongle so you can connect to either type of port.