... Plastic case 2.Safety lock function , to avoid taking away the CF or SD card ... 100 WFunction Description:1,Support CF,SD,MS,XD to play (Notice : CF and SD cards could ... reader, easily replace the advertisement content13,Support USB to carry on the program upgrade directly14,Support video adjustment ... function , to avoid taking away the CF or SD card and machine 17 Inch Indoor wall mounted LCD AD Player ...