Features: - Compact Megaphone Speaker - Portable Battery Operated Design - (2) Audio Modes: Voice Talking & Siren Alert - Voice Mode: Amplifies Your Voice as Spoken into the Microphone - Siren Alert Mode: Button-Activated Emergency Alarm Tone - High-Powered PA Sound Projection - Adjustable Volume Control - Convenient Quick Folding Handle - Ergonomic Pistol Grip and Mini Light-Weight Chassis Technical Specs: - Power Output: 20 Watt MAX - Audio Projection Range: Up to 400+ Yards - Battery Operated: Requires (4) x ‘C’ Batteries, Not Included - Megaphone Size (Diameter x Length): 5.40" x 8.60" -inches