HANDY MEGAPHONE Ideal for crowd control,fire fighting,rescue operations, sports events..etc Handy megaphone,portable megaphone,sports mini megaphone,loud speaker. MODEL:XB-55 with built-in mic, DC 12V jack,with stand *size: Φ230xL370 *Dry cell: 8x2#(size C) *Power: RMS 20W / MAX 45W *function: speaker/siren(or whistle optional)*Packing: 4PCS/50.5*50*39cm