... mobilephone,all device with 3.5mm 4.In stock Portable Sound Cylinder Speaker Instructions:1, battery: internal lithium polymer batteries, when ... TF card USB MP3 player5, OFF/ON: switch on OFF sound off, put ON plays Parameters:Power output: RMS 6W (3W ... perfect combination of classic and modern, best sound.2, a new micro-aluminum diaphragm speakers, bass and pure. Unique design, quality performance ...