Pyle Megaphone Speaker PA Bullhorn - with Built-in Siren 50 Watts Adjustable Volume Control & Record Function - Ideal for Football Baseball Cheerleading Fans Coaches or for Safety Drills PMP58U - The Pyle Megaphone PA Speaker System provides portable and high-powered audio projection ability! With each iteration of flagship megaphones Pyle has improved the battery life sound power and ergonomic functionality -- to ensure your message is heard loud and clear. Control crowds from distances up to 5 200’+ feet away with handheld wireless performance. The system is battery operated requiring (8) x ‘C’ batteries -- or can be powered by an external adapter via the power input jack. Use the integrated handheld wired microphone to add even more convenient audio projection mobility. Additional system features include switch-activated siren alarm mode that emits a continuous emergency tone Aux (3.5mm) input jack allowing you to directly connect and stream audio from external devices along with a USB flash memory reader to playback MP3 digital audio files. Enjoy wireless PA sound power performance with the Pyle Megaphone Speaker System.