1. Bluetooth v1.2 complaint, CSR BC03 Chip 2. Output level, 1mW ( 0dBm), class 2 3. 10 meters working range 4. Voice dialing out function by push ANSWER button on the car kit (subject to mobile phone support) 5. Last number re-dial function by push POWER-button on the car kit 6. Caller ID displayed by 14 digits LCD on the car kit 7. Blue color LED back light. 8. Build in noise suppression microphone. 9. Automatic reconnection if Bluetooth link is disrupted 10. 1 watt speaker and Speaker!|s volume is adjustable 11. Echo cancellation by high performance DSP build in BC03 chip. 12. Plug-in the car cigarette power 12/24 V 13. Provide 2 profiles, Hands-free profile and Head-set profile, so Suitable with any Bluetooth enable phones. 14. Wide angle and anti-reflection glass mirror, 200C, 3M glue suitable high temperature in car. 15. Size 290 x 80 x 27 mm , Weight 340g