... add vedio function 4, key button with remote LED Display USB/ SD,FM 2.1Channel Speaker system Features:1, ... DVD,TV and all audio device.2, Black plastic pannel, Stby,inputer vol+,vol-,mode with remote control.3 ... choose, big size satellite can bring more value5,LED display screen, USB,SD card can add mp4/5 format ... 602sets/20gp,1032sets/40ft,1462sets/40'HQ LED Display USB/ SD,FM 2.1Channel Speaker system