XO BCC01 FM transmitter is a device that will be useful to any driver who does not have a USB or AUX port equipped. With a transmitter in your car, you don't have to worry about an empty phone, tablet or other portable device. You can charge them quickly and efficiently thanks to the USB ports. With this product you can also play music from your phone and even from a USB stick. Answer and reject calls, reconnect to the last number, change the frequency, manage songs and adjust the volume - all with one transmitter. Input voltage: 12V - 24V Dual USB output: 5V/3.1A Audio frequency: 87.5 - 108MHz Display: LED Digital screen Range: 5m