... Voltage/Under Voltage/Overheating 2.Output: AC 220V+USB 5V specification : Purpose: for play MP3s, play MP4s, charge up cellphones, ... CDs/DVDs, emergency lightings, electric fans and electric blanketsShell materials: PC + ABSInput voltage: 10V to 15/20 to 30VOutput voltage: ... is 220V AC can be used by the productSuitable for DVD, electronic game machine, video camera, digital camera and their batteries ...