Sennheiser BTD 500 USB - network adapter

With the BTD 500 USB dongle music lovers can enjoy a much higher quality Bluetooth sound. The dongle also creates a Bluetooth connection, if the computer doesn't have one already, and it enables voice protocol so that you can enjoy wireless messenger calls from your computer on your connected headset. Best of all the dongle makes sure an audio link is established when audio is played, without the need for you to push any buttons on your headset.