inputs.text: not impressed - looking basic mp3 playing boombox could used small bedroom real requirehement usb interface play songs preloaded onto usb stick reviews indicated max volume unit not great needs not critical issue unfortunately drawbacks unit made us return refund 1 playing mp3 files usb audible \\click\\ tracks quiet bedroom playing drift sleep click gets annoying pretty quickly 2 unit produces audible electric hum time plugged even powered also annoying especially bedroom 3 unit vibrates playing cd [ ]