... , Home Speaker, Subwoofer, MP3 Speaker, Multimedia Speaker, Speaker Box, Loudspeaker, Sound Box, usb speaker,PA speaker, portable speaker,Speaker System ... units: 10"*4 woofer4. USB/SD5. guitar input6. with fm7. with wireless mic8. optional woofer size:10".6.5".remote.color ... sale 2.0 professional multimedia stage party dj black speaker with ball led usb/sd/fm TROUBLE SHOOTING: FailurePossible causeNO ...