... & MP3 2.Indicator light 3.Good quality and competitive price With remote control car subwoofer 4 inch CH-2012CSpecifications:1) With5 inch car ... more music source are supported by our WeiDa subwoofers. 4) With remote control function 5) Previous/next button, bass 6) High power output ... ) USB port, SD-MMC slot, AUX in, compatible mp3 format With remote control car subwoofer 4 inch CH-2012C