Products Name： Car USB-MP3 Transmitter Serial number ：UFT-01 Elaboration： 1. Introduction This car USB-MP3 transmitter is a controller, which uses USB groupware & MP3 of OTG. The user can save files in USB flash drive, plug that into USB connector and press " Play ?button. Then OTG decodes the inner MP3 format from USB flash drive and transmit it to MP3 CMOS chip through a special stereo transitional CMOS chip, then transfer into FM high frequency signal. 2. Features ▲Supports the USB flash disk device (Version 1.1 or 2.0) ▲Search (MP3 File) for whole disk ▲3 buttons with 6 functions 3. Specification ▲ Antenna: Built-in ▲ Power: Car Lighter ▲ Displays: Power LED, Play and Pause LED ▲ Audio Out: FM ▲ Transmitter frequencies(MHZ): 88.1,88.3,88.5,88.7,107.1,107.3,107.5,107.7 4. Size: 84mm(L) x 35mm(W) x 22mm(Thickness) 5. Certificates ▲ FCC. CE 6. Environmental Operating Ranges: ▲ Operation Temperature Range: 0~ 60 Celsius Degree. 7. Power Consumption ▲ Max Power Consumption: 1.2 W ▲ Working voltage: DC10-28V 8. LED Indication ▲ Red Light on: Power On. ▲ Red and Blue Light on: Playing Music