... Tour-guiding, Micro-meeting, etc. Recording Radio speaker with remote control Description:1.Mainly for Market-promotion, Class-teaching ... hours.8.Recording Function by other button9.With Remote control, can operate more easily10.Memory play, auto ... antenna,auto research easily.12.ECHO Volum control ,make VOICE More clear 13.Support Background ... Ctn:30pcs/ctn More photo: Radio speaker with remote control