Overview The BTD 600 is a Bluetooth dongle specially developed by Sennheiser audio experts to be a perfect match for their Bluetooth -enabled products. It’s the easy way to get the best performance your headphones can offer. Key Features 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. Get the best experience your wireless Bluetooth -enabled headphones can offer Enjoy the best possible sound with support for the latest aptX audio codecs including aptX Adaptive and aptX HD. 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.