DENN DMG-305BG DMG-305BB BLUETOOTH MEGAPHONE 25W DC RECHARGEABLE LOADSPEAKER USB TF SIREN VOICE RECORD PLAY MEGAFON Loud Hailer PEMBESAR SUARA 扩音器

Denn. Helps communicate important emergency information. Helps to get everyone's attention quickly. Allows you to give clear instructions under crisis situations. Easily connect with your phone playing music or sound with bluetooth function. With USB TF Card input-Play directly with power level LED Indicator. Allows to record and play repeatedly with record functions. Has a variable volume control, can use it indoors and outdoors. Convenient and portable, easy to bring anywhere with strap. Wide audible range, people far away can hear. Removeable 1500mAh 18650 Rechargeable Battery easy bought and replaced. Perfect for sports activities, rescue, political demonstrations, social management and cheerleading activities. Provides optimal reinforcement for various application at school, government organisation, construction site, factory, etc