Amplivox SB602R Bundled Mity-Meg 25W Megaphone with Rechargeable Battery Pack, Effective Range 1760 Yards/One Mile, Comfortable Pistol Grip, Play Siren Function, Play Whistle Function 25 Watts Power, Effective Range 1760 Yards/One mile Battery Indicator Lights (Low, Medium, High) shows power status 3 Modes: Talk, Siren, and Whistle functions Play Siren Function, Play Whistle Function Constructed of durable ABS plastic