Supports mobile phone based voice commands Complies with all hands-free laws Bluetooth audio streaming (A2DP and AVRCP) Bluetooth audio playback pauses during active calls and resumes afterwards Integrates and mutes car’s stereo system Compatible with Bluetooth mobile phones DSP technology for noise and echo cancellation Stereo output with low noise pre-amps for superior sound quality Accommodates up to 8 different Bluetooth mobile phone pairings 2-Year Limited Warranty Command unit dimensions: 1 11/16 x 1 1/4 x 11/16 (inch)