... , Micro-meeting, etc. Recording Radio speaker with remote control Description:1.Mainly for Market-promotion, Class-teaching, Tour-guiding, Micro-meeting ... 30 hours.8.Recording Function by other button9.With Remote control, can operate more easily10.Memory play, auto memory the ... .15.One key shift playing mode,shift single,random and all music circulation. 16. with more volume power( 30w)Specification: ...