Hands-free Calling - Answer (press once)/Private Answer(long press during a call)/ Hang up (press once)/ Reject (long press)/ Redial calls (press twice), your hands can be free for safe driving with the bluetooth adapter for car.
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Voltage Detection - Fit the fm transmitter bluetooth for car into the car cigarette lighter, the battery voltage can be detected and temporarily displayed in the screen to tell you each time battery is ok or has issues.
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Multiple Protection - Designed with built-in Smart IC, over-current, over-voltage, over-heat, short circuit, the fm transmitter bluetooth for car effectively prevents multiple unsafe problems.
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