Streams music from up to 20 meters 66 feet away from the speaker within direct line of sight bluetooth 41 compatible with all a2dp stereo bluetooth devices works with any stereo supporting 35mm or rca jacks the ha100 provides your stereo with bluetooth connectivity enabling you to stream music wirelessly from your smartphone or tablet you can just sit back and relax as you listen to and control your favorite playlists away from your stereo if your device has nfc functionality you can simply 3