... , Class-teaching, Tour-guiding, Micro-meeting, etc. Recording Radio speaker with remote control Description:1.Mainly for Market-promotion, Class-teaching, Tour-guiding ... .standby time 30 hours.8.Recording Function by other button9.With Remote control, can operate more easily10.Memory play, auto memory the last ... .W.:0.485KGQty/Ctn:30pcs/ctn More photo: Radio speaker with remote control