portable PA sound system with DVD/USB/SD/UHF/FM AK12-209A specification: that do the research,development and production all by ourselves, warmly welcome customers make cooperation with us, 1, Years of manufacture experience. 2, All products support wide-range input power, AC65-265V(50-60HZ), so customers have no need to worry about power. 3, customized order accepted. 4, Best product with excellence after-sale service. This is a portable pa system with 12" speaker,with DVD player,with UHF wireless microphone 12 Inch Plastic Portable PA Active Speaker A voice priority feature that mutes the music when mic is used. Echo control on wireless mics Features: Model AK12-209A Power supply :AC160-260V(50-60Hz),built-in 2 pcs DC12V/7Ah rechargeable battery,One DC12V input jack,LED power indicator and charging indicator Amplifier power:80W Speaker:12'' woofer,high senstitive tweeter Standard Packing