Introducing the easiest way to get top quality music and call experiences on the go. 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 Skype or 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.