Portable Amp 1.Built-in DVD and cassette player,USB,SD ... High sensitive wireless mic 3.Built-in 18V rechargeable battery Portable ampBuilt -in DVDplayer, can play DVD ,DVCD,SVCD, ... :Multi-media supported ,compact ,portable ,clear and loud sound reproduction ,well suited for any PA application,in cluding home Karaoke , ... of MIC buit-in audio wirelessDimensions 300X300X510mmN.W.18KG PA-118DUT Portable Amp