The Hamilton Buhl MM-3 Mighty Mike Bullhorn Megaphone projects your voice with exceptional clarity. Lightweight, compact and ruggedly constructed, it resists impact and outdoor conditions. Special features include an external wired microphone, siren and a voice recording loop which allows you to record up to a 10 second message and loop playback infinitely. The MM-3 Megaphone (Bullhorn) offers a compelling combination power and exceptional value. One (1) year warranty.