Ideal for crowd control,fire fighting,rescue operations, sports events..etc Handy megaphone,portable megaphone,sports mini megaphone,loud speaker. MODEL:XB-56S , with build-in & extra mic ,with stand *size: Φ230xL350 *Dry cell: 8x1#(size D) / DC 12V *Power: RMS 25W / MAX 50W *function: speaker/siren*Packing: 4PCS/50*50*38.5cm