3.5mm Stereo Hands-Free Headset Adapter / Speaker Adapter for HTC Touch Pro 2 / Tilt 2 / Hero / Imagio / Pure / Touch Diamond 2 / Droid Eris This adapter converts your phones audio output into universal 3.5mm output. Enables your phone to be used with stereo 3.5mm jacks: Headsets, Speakers, Receivers, etc... Small, lightweight, and convenient. 4 inches in length. Flexible cord allows for multiple postioning.