Function: Support hand-free calling, built-in microphone. Noise cancellation by CVC. Play mobile music with high quality once connecting by bluetooth. Auto pairing once turn it on. Can Charge the device in car. Features: Car Charger Input Voltage: 12-24V Sensitivity: 92dbm Bluetooth Frequency: 2402-2480 MHz Effective Range: 5m Output voltage: 5V+/-0.25
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