... with mobilephone,all device with 3.5mm 4.In stock Portable Sound Cylinder Speaker Instructions:1, battery: internal lithium polymer batteries, ... sound off, put ON plays Parameters:Power output: RMS 6W (3W+3W) THD=10%Frequency response: 100-18000HZ (+-3DB)Signal to noise ... of power supply, allow you tolisten anytime, anywhere to digital glamour.6, the top mirror LED display, instantly displaying ...