... .2.Integrated retractable handle and wheels for easy carring.4.with USB /SD Jack, can read and play song.5.Digital ... recording function,can record CD to USB11.with external battery jack,can connect with outer DC12V battery12.Built-in rechargeable 12V/12AH ... cord,wireless microphone, wireless earphone,remote control,AV cable Hot Selling 15inch 90W Black Portable PA system with USB,SD reader,Mics