The Pyle PMPRA213BK Megaphone is a powerful and portable bullhorn designed for versatile use. With a 20-watt output, it offers multiple modes: Talk, Siren, Music, Whistle, and even a 60-second recording feature. The built-in automatic siren is ideal for emergency situations, while the aux input lets you stream MP3s or digital files. This lightweight, ergonomic megaphone includes a shoulder strap for portability and an adjustable volume control for customized sound. It's compatible with external devices like smartphones and tablets and is powered by 4 'C' batteries (not included).