Scosche Universal Bluetooth Handsfree and Streaming Audio Car Kit Hear calls through your vehicles factory speakers 2.1 Bluetooth compliant support profile: HFP A2DP AVRCP Voice announce caller ID says the number of up to 1000 contacts One touch voice dialing with most Bluetooth cellular phones Automatically pairs with your cellular phone once the car is turned on and mutes any source once a call is received DSP echo cancellation ensures a crystal clear conversation Installs in minutes & includes all necessary mounting and installation hardware