... YT-009 SUPPORT SD/USB/FM 1,anti-theft alarm 2,input:DC15V 3,power:15W+15W 4,SD,USB Anti-theft alarm ... of FOSHAN YATAO ELECTRONIC FACTORY1,motorcycle anti-theft alarm 2,SD:yes 3,USB:yes 4,MP3:yes 5,FM:yes 6 ... %4,Frequency Response:10Hz-50KHz+/-dB5,S/N Ratio:>90dB6,Stereo Separation:>-60dB7,Treble Bass Range:+/-15dB8,Input Impedance:20K Ohms9 ...