This adapter converts a 11 pin headset jack to a 3.5mm jack. The cable is approximately 4 inches long and allows you to plug in any stereo device that has a standard 3.5mm audio jack, such as your favorite pair of headphones. The HTC 3.5mm Mini USB Stereo Headset Adapter allows you to connect your HTC PDA phone to any 3.5mm heeadphone. Enjoy listening to your favorite music using any standard 3.5mm stereo heeadphone. Just plug in your favorite stereo headphones to the HTC 3. source
