... TF,USB,MP3,PC and Mobile. 4.speaker unit 1.5"x1 1.Aluminium alloy materials 2.RMS ;3W x 1 ... , U Flash Disk,FM,MP3,mobile and computer with 3.5 jack4.Li-ion battery;BL-5C5.Speaker unit;1 ... .5" x 1/4ΩAccessories3.5 Standard stereo audio cable, USB cable HOT SELLING ...