1. Auto pairing, without press any button 2. Pairing up to 5 phones; auto connected to the last paired phone 3. Call ID read out with English or Other Language （by customers ） 4. Full duplex conversation, DSP arithmetic for echo cancellation & noise suppression 5. BT V1.2, HFP / HSP , AVRCP/A2DP (option) 6. Compatible with all mobile phones with Bluetooth on the market 7. High powered ampifier output and uses the vehicle's speakers. 8. Directional high sensitive microphone 9. Voice dialing, redial, pick up, hang up 10. Automatic Loudspeaker mute and built in Mute for mute button; 11. 1 electronic control unit, 1 external microphone, 1 power supply cable,1 mute cable with ISO connectors, 1 Keypad, fitting accessories, user guide 12. Console Keypad Easy-to-see pick-up and hang-up buttons plus dial and volume control; easy to install