Mity-Meg 25 Watt Rechargeable Megaphone with S1405 Lithium-ion Battery pack. Sound coverage up to 1 mile (1760 Yards). Lightweight and powerful with new Piezo dynamic technology. Comfortable pistol grip and 3 modes: Talk, Siren and Whistle. Weatherproof high impact plastic and steel. Battery indicator light shows power status (low, med, hi). Adjustable Volume. S1405 Rechargeable Lithium-ion Battery Pack lasts up to 8 hours. Can run on 8 C-cell batteries (not included) for up to 40 hours continuously . Net weight 2.0 lbs without batteries. S1405 Lithium ion rechargeable battery included.