... 3"*2 4.Electroplating Knob 5.Support usb ,sd card ,vfd display Features:1. Built- ... bass, treble, echo, mic-volume separately control4. Compatible with PC/VCD/DVD/CD/TUNER/TAPE/TV and other audio ... model by 2010-2011yearSpecification:2.1CH home theatre with remote controller 1,Output power:30W+10W*2( ... 40HQ 2.1 Piano home theater system speaker ,With usb ,sd ,vfd display, fm , karaoke , mini remote ...