... 2 4.Electroplating Knob 5.Support usb ,sd card ,vfd display Features:1. Built-in USB ... bass, treble, echo, mic-volume separately control4. Compatible with PC/VCD/DVD/CD/TUNER/TAPE/TV and other ... model by 2010-2011yearSpecification:2.1CH home theatre with remote controller 1,Output power:30W+10W*2(RMS) ... .1 Piano home theater system speaker ,With usb ,sd ,vfd display, fm , karaoke , mini remote function