3 modes: Talk, Siren, and Music 40W max power output for loud and clear sound projection Aux (3.5mm) input for MP3/music connection to external devices Includes handheld microphone for easy speaking Siren alarm button for emergency alerts Projection range: Up to 1000 square yards Adjustable volume control to customize sound levels Battery powered (requires 6 x 'D' batteries, not included) Ergonomic pistol grip and lightweight chassis for easy handling