Memory Size:Other PC Interface:USB,Bluetooth-Enabled Combination:Radio Tuner,MP4 Players,Bluetooth-Enabled Certification:CE,FCC Supporst Card:Yes Combination:Radio Tuner, Bluetooth FM Trans Input:DC 12-24V Output:DC 5V=3.1A Frequency response:87.5-108MHZ Bluetooth teans:ission distance: 10-15m Color:black silver gold Size:7*3.5CM Net weight:0.5kg