Charger USB Car Cigarette Lighter Adapter Chargers Wireless In-Car Bluetooth FM Transmitter MP3 Radio Adapter Car Kit USB Ch
Bluetooth vision:V3.0Bluetooth protocol:A2DP, AVRCP, HFPBluetooth band:2.4 GHz-2.48 GHz unauthorized ISM bandBluetooth Transmission distance:5metersFM frequency:87.5-108 mhzFM transfer distance:2metersInput voltage:12-24VOutput:5V/2.1AMusic format:mp3, wmaFeatures:1. New Wireless Vehicle Bluetooth FM Transmitter Car Charger.2. Automatically adjusts the voltage received from the vehicle so your device always charges at a constant rate .3. Multifunctional: Wireless connection(Bluetooth), Build in microphone, FM transmitter+USB Charger+MP3 Player.4. Adopt CVC technology for controlling the noise and winds, help to stable the music's quality.5. The main button on the middle supports to change music or swap call, the near rotary knob is designed to adjust the volume.