Feature: • Works with iphone、smartphones、latops、and other devices • Battery lithium rechargeable battery for ultimate portability volume,music and phone controls • Micro SD card • Led display • Fm radio,search and record the Fm frequency automatically KARAOKE function Specification : • Wireless transmission rang : up to 10 meter • Speaker drive size : 6.5 inch • Output power : 5W • Sensitivity : 80db • Frequency response : 150Hz-18KHz • Battery capacity : 800mAh • Max memory support : 32GB Play Time : Up to 3 hours at 75% volume • Charging time : 2-3 hours Inside The Box : • Portable Speaker X1 • USB Cable X1 • free mic