Products Name:Car MP3 Player Serial number:UFT-02 Built in 128MB, 256MB, 512MB available. 1.Product View UFT-02 Car Music Radio is controlled by USB flash drive & music decode memory.It is a new product;Focus on high performance "CMOS"IC & professional stereo FM transmit IC. 2.Features Supports the USB flash disk device (Version 1.1 or 2.0) Memory:128MB / 256MB Supports MP3, WMA, WMV, SAF Search & play MP3 files automatically Three buttons with eight functions Turn to "SLEEP" situation automatically Keep music function 3.Specification Antenna:Built-in / exterior Power:Car Lighter Voltage ranges:12V-24V Indicator LED:Power, Play , Sleep, Pause/stop Audio Out:FM 14 available frequencies (MHZ):87.7 - 107.7 4.Product size:84mm(L) x 35mm(W) x 22mm(Thickness) 5.Certificates FCC.CE 6.Environmental Operating Ranges: Operation Temperature Range:-10 - 60 Celsius Degree. 7.Power Consumption Max Power Consumption:1.2 W 8.LED Indication Red Light on:Power On. Red and Blue Light on:Stop Red and Blue LED are flashing quickly:Playing music Red and Blue LED are flashing slowly:Pause Sleep: