... materials with LCDscreen (can show song,time,recording,calendar,alarm clock)and reverberation FM.UV CE FCC RoHS passed 1, Material; plastic ... 1,LCD screen (can show song,time,recording,calendar,alarm clock)3,Li-on battery;7.4V 2200mAh/rechargeable4,Support;U ... a 3.5mm audio jack, including cell phones, MP3 players and computers.5,Re-charging timeL 3-5 hours,music playing ...