... card,U-Disk,etcB,mobile device,such as PC,mp3/mp4 player,Mobile phone,etc2,it has a small size,you can ... supply:DC 5v/Li battery,1000MAH,7--9hours.function:music player/loudspeaker/color:silver,black,ect technical parameter: Output power: 5W ... cameras,headphones,etc.and our digital products covers from Mp3 player/Mp4 players,to mini speakers,etc.We are a powerful manufacturer ...