portable megaphone Function:talk/siren/record sound coverage:500m Size:230×370mmSound coverage:500mPower :25WPower source:8×1.5V(size C)ABS housingWith Talk/Music(Siren)ABS Housing  Easy to control and switchWith many colors and styles to choose

product line

                                                          

     material house                 machine              semi-finished products

   

    circuit board                production shop                  packing

certification

portable megaphone