Wireless Bluetooth 5.0 FM Transmitter QC3.0 Hands-free Radio AUX Adapter Car Kit Bluetooth FM Transmitter Car MP3 Player Features: Quick Charge 3.0: Ensure fastest and most efficient USB charging technology, provide up to 4X faster than standard chargers, you can charge compatible devices to 80% within 35 minutes. Crystal Clear Music Streaming: You can stream music on your car stereo via Bluetooth/ USB Flash Drive (32GB) / microSD Card (32GB). Note: WMA MP3 WAV APE FLAC music formats in USB flash drive or microSD card are supported. Hands-free Calls: This Bluetooth FM Transmitter Car MP3 Player Offer stable connection and echo-cancellation effect, reduce background noises for better hands-free calls, so you can answer phone calls with a press of the button. Functions: Bluetooth FM Transmitter Car MP3 Player Equipped with a voltmeter to show you the condition of your car battery. Voltage should be between 13. 2V to 14. 7V when your car is on and moving. 12. 2V to 12. 8V when your car is parked and ignition is off. Compatibility: 12V/24V adaptor, Bluetooth FM Transmitter Car MP3 Player work with any Vehicle type car/van/trucks/boats that has a FM radio receiver and no Bluetooth functionality. Bluetooth FM Transmitter Car MP3 Player Specification: Type: Bluetooth FM Transmitter Car MP3 Player Bluetooth FM Transmitter Car MP3 Player Working Voltage:12V-24V Bluetooth FM Transmitter Car MP3 Player USB Output Voltage:DC / 5V Bluetooth FM Transmitter Car MP3 Player Dual USB Output Current:QC3.0/USB 2.4A Bluetooth FM Transmitter Car MP3 Player - Bluetooth Version: Bluetooth 5.0 Bluetooth FM Transmitter Car MP3 Player - Effective Distance:10M Bluetooth FM Transmitter Car MP3 Player - Launch Distance: