If you need a bullhorn-style megaphone capable of projecting your voice up to 1000 yards, check out the PMP43IN 40W Hand-Grip Professional Megaphone from Pyle Pro. This bullhorn is equally suited to indoor and outdoor events. With 40W of power at its disposal, this bullhorn will ensure your voice will be heard.
A volume control lets you adjust the level of your voice to the needs of your space, while a built-in siren can be used to get attention or annoy people. An external audio device such as iPod or iPhone, can be plugged into the bullhorn by means of its 3.5mm jack. The sturdy housing of this megaphone is another feature that makes it useful for schools, sports coaches, and more.