Comsoon Bluetooth FM Transmitter, Bluetooth Receiver MP3 Player Wireless In-Car Stereo Radio Adapter Car Kit Hands Free Calling, Dual USB Ports Charge 5V/2.4A & 1A

Comsoon Bluetooth FM transmitter, wireless car kit with dual port car chargers the easiest way to add Bluetooth function to your car stereo system; the simplest hands-free solution to bring wireless audio to your existing car stereo and listen to your favorite songs. Safe for calling built with a high-quality microphone, totally free your hands, just press the phone call button and speak while you are driving with both hands safely. How to adjust FM? 1)Simply tune your car radio to any unused empty frequency (87.5 -108Mhz), 2)match this transmitter to the same frequency: long press the phone call button until the digital frequency flashes, shortly press the up/down key to achieve FM frequency increase/decrease. Specifications: material: ABS USB output: 5v/3.4A product input: 12v-24v charger output: 5v/3.4A music format: mp3, WMA FM transmission distance: 5m Bluetooth protocol: avrcp, hfp, a2dp screen display: blue LED digital display usb(max capacity): 32gb (not included).