40W megaphone with 800-square-yard communication range Waterproof design for reliable outdoor use Rechargeable battery for convenient cordless use Ergonomic pistol grip and shoulder strap for portability Adjustable volume and tone control for customizable sound Multi-functionality: Siren, music, record 240s, megaphone, speaker, or bullhorn Includes plug-in handheld microphone for easy speaking or recording Simple and user-friendly operation for all users Loud and powerful sound output suitable for large areas