Our first own bullhorn, and equal to a direct hit. Great sound, continuously adjustable from low volume to mega-mammoth event adjustable, comfortable hand micro - both for single announcement as well as for continuous operation - which can be if you want to, without major problems mount, in a mic stand ... For this purpose a piercing siren. Good portable (with hand holder and / or belt), but also thanks to two small "feet" unproblematic remedy.
A Megaphone for all cases ... (For us it comes preferably as a special effects unit making music for use ...)