... suitable for on-stage performance, teacher guide and so on. Function:1,with USB,TF,MP3 input2,FM radio with antenna3 ... echo4,with LCD digital screen,size:30x22 mm5,with the function: calendar,alarm clock,showing song lyric,etc.6,with remote ... Specification1 x Power AdaptorWith ROHS,CE,ISO 9001 certificate Portable Multi-function Remote Control Megaphone GP955R