... -Disk,etc B,mobile device,such as PC,mp3/mp4 player,Mobile phone,etc2,it has a small size: ... card,PC,MP3/MP4 playerPower supply:DC 5v/Li battery,1000MAH,7--9hours.function:music files player/loudspeaker/color: ... as PC,phone,MP3 player.etc1 pcs USB cableconnect your PC for charging package: size of gift box:323.2* ... size of product:300*45*45mmpackge:gift box for each product,size of gift box:323.2*54.1*80 ...