The Pyle PMPRA213WHI Megaphone is a compact, 20-watt bullhorn designed for loud and clear communication. Featuring multiple modes such as Talk, Siren, Music, Whistle, and even a 60-second recording feature, this megaphone is perfect for both professional and personal use. The built-in automatic siren is useful for emergency situations, while the aux input allows you to stream MP3 and digital audio files. It also includes an adjustable volume control and is designed with an ergonomic pistol grip and shoulder strap for maximum portability. It is powered by 4 'C' batteries (not included).