... , tours, or demonstrations, easy to organize. The deciding factors: its light weight, ergonomic construction, shoulder strap, and low power requirements make the ... 715X520X390MMThis our sample room Detail feature for the 25Watt Megaphone Light weight Siren loud hailer as following: Our cleanly workroom,How the ... hailer:TT,L/C,D/A,Western union and so on.This is me, i am Dorohty , from Huachen Electirc ...