Works with the following: for Pioneer DEH-P2500, DEH-P2500R, DEH-P2600R, DEH-P3500MP, DEH-P6600R,DEH-P9600MP , DEH-P3100UB, DEH-P4100SD, DEH-P5100UB, DEH-P5600MP, DEH-P7600MP,DEH-P7100BT, DEH-P717, DEH-P7300R,DEH-P77MP, DEH-P777, DEH-P8100BT, DEH-P88RS-II, DEH-P88RS, DEH-P900,KEH-P6200-W,KEH-P8600R, MEH-P055, DEH-88,DEH-P88RS,DEX-P01,DEH-P930,DEX-P910,DEM-P910,DEH-P7650MP, DEH-P620 Features * Support USB, AUX or AUX MIC input adapter , USB support up to 4~32GB (not included ) * BT handfree function ( AD2P ) Answer or reject call phones by press track +/- * Easy to install and use, directly plug and play. * Vibration and interference proof Product Description: - Bluetooth-compatible hands free car kit. - Integrated BT Car Interface adds Hands Free Calling and Wireless Audio to the original factory stereo of many cars. - The system comes with built-in BT and microphone. - Use your phone in the car hands free (HFP), stream your music from your phone to the factory stereo via BT Audio playback (A2DP)). - Only one AUX input in the adapter you Choose AUX or AUX MIC which one you needed The USB slot is NOT for charging your phone or using your phone to play music, you have to use USB stick or USB Flash drive with MP3 file on it so you can use it to play. Specification: - Voltage input:12v DC - Signal-to-noise: