Earthquake detection automatically boot when from the car more than 5 minutes equipment shutdown then when you back to the car next time if enough vibration switch door the product will be automatically switched on and establish the connection with your mobile phone. Music play when you car driving can enjoy a good time. Answer the phone when call hear a chime allows you to say "Yes" answer the call also can say "No" refuse to answer the phone the liberation of your hands the greatest degree of protection your driving safety. Know your voice reminds via voice bluetooth car now of the state also can understand of the state through the light. Voice times when there is telephone dial style will be via voice tell you dial the telephone number of the back. Electricity according to the product support apple or millet mobile phone display bluetooth power indicator bar real-time display of bluetooth power. NFC fast connection can through the mobile NFC with bluetooth car quickly connect (need 3 seconds docking into red and blue indicator state after push on ask dialog). Automatic back to even when the mobile phone after leaving the car returned to the car 5 minutes automatically with the handset to establish a connection. Quiet in the process of calls through the simple implementation mute switch to the normal answer key.Oval streamline design beautiful wei qiao built-in 2.5 W high performance class D power amplifier chip a clear energy saving. Repeatable charging: USB charging environmental protection energy saving easy to carry.