Plug’n’play harness for quick installation. Features voice dial*, manual dial and redial (*Cell phone must be compatible for voice recognition). Latest advanced audio distribution profile (A2DP) streaming for music. Volume control utilizing vehicle's stereo speakers. Links automatically to handset when vehicle is turned off. Highest quality sound features full duplex DSP (digital signal processing) allows both parties to converse simultaneously. Private call selection will transfer the call to your handset. Excellent echo cancellation to prevent callers from hearing feedback. Easily pairs up to 5 phones in 4 quick steps. Ability to reject an incoming call.