The Pyle Megaphone Siren Bullhorn Speaker is designed for both indoor and outdoor use, featuring a powerful 30-watt output to project your voice or music over a 500-square-yard range. With its waterproof design, rechargeable battery, and durable construction, this lightweight and portable megaphone is perfect for outdoor events or emergency situations. The included plug-in handheld microphone and adjustable volume control make it simple to use, while the built-in siren and music functions offer added versatility.