SpecificationMP3、 iPod、 CD /DVD player input jackLow distortionFrequency response : 20Hz-20kHzHaronic distortion: < 0.05% 4W 1KHSNR : 85 dBJack input: standard stereo jackReader、 U-disk format : MP3 FMBuilt-in FM function£¨FM87.5MHZ-108.0MHZ)Hight control :12dB +-10 KHzBass control : 12dB +-100HzThe signal level : 220 MV 47 Kreader、 U-disk formet :MP3 FMFM frequenvy: 87.5MHZ ---108.0Voltage: DC 12VOutput Power: 200 WDimensions: 110*155*45£¨mm£©Material: lightweight aluminum IntroductionCan play the disk SD /MMC card for music and FM stereo radio、 support Mp3 music format.( USB+SD +FM)Select high-power Two channel professional power amplifier integrated circuits、 minimal distortion、 strong powerPre-professional level input operational amplifier IC for circuit design、 sound 、 transparent、bright.Filtering and anti-large-capacity power circuitDSP sound field pattern of the fourTwo main channelKey functionVolume: volume adjustable and host switchBass: bass tuningTreble : Hight adjustmentmode: play mode 、selectionclickn play U disk's songdouble click played SD's songthree click played Fm stereo radioPlay/scan: the play/pause/Fm automatically adjustable.play modes: short pause 、click this button again according to play .short fm mode、 click this button for fm automatically adjustable.next: next (in the play)Prev Back (in the Play)Please feel free to contact us if you have any question、 Looking forward to do the business with you!!!Packing Content:1X Stereo Amplifier1X Controller1X Use Manual