Power Source : USB Number of Loudspeaker Enclosure : 3 Feature : Colorful LED light Material : Plastic Model Number : U-3000 Special Feature : PORTABLE, Mini Type : Multimedia Speaker Product name : USB speaker Material : ABS Plastic Support : Aux Function Power : 5W+3W*2 Power supply : USB DC5V Usage : MP3/MP4/Computer/Laptop/Mobile Phone/Tablet PC