AMPLIVOX S602R Mity-Meg 25-Watt Megaphone

25W; Effective range: 1 mile; Comfortable pistol grip; 3 modes: talk/siren/whistle; Adjustable volume control; Constructed of durable ABS plastic; Up to 8 hours typical operation with S1405 rechargeable Li-Ion battery pack; Up to 40 hours continuous talk time with 8 C batteries; Requires S1405 rechargeable Li-Ion battery pack or 8 C batteries; Weight: 2lbs;