【HIGH-QUALITY AUDIO】Bluetooth V4.1+EDR,With our built-in 3W speakers, echo&background noise-reduction feature, and volume controls-let you enjoy crystal clear calls and music. 【DISTRACTION FREE DRIVING】Encourages safe driving by using Siri or Google Assistant to make phone calls, send texts or get driving directions. You to connect to 2 phones simultaneously & easily switch between music & calls! 【DRIVE WITHOUT DELAY】Our motion sensor enabled allows you to turn your device to ‘Auto Power On’ so the device turns itself on when your car door opens and off when the Bluetooth disconnects. 【EASY CONTROL LARGE BUTTON】Easy to operate large buttons design，Enables you to drive safer during use. 【PRIVATE CALL】During the talking by car speakerphone, press the Mute button of to turn off the voice, Can make the other party temporarily unable to hear the sound inside the car，and re-press the button to return working. press and hold the “answer button” for 3 seconds to switch the call from the talker to Mobile phone answering privately.