... led panel,led control panel screen,desk led panel screen,led control panel screen,flexible led screem,bus le bus led display screen,programmable display screen,desk led panel screen,mini led laptop panel,flexible led ... Built-in rechargeable lithium polymer battery, 2060mAh,with fully charged can support as long as12hours ... from AC110V-220V. 8.USB cord with two function: uploading message from PC and ...