Best Amplivox Megaphones

Mity-Meg 25 Watt Rechargeable Megaphone with Detachable Mic and Lithium Battery. 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. Cycle Life: Battery pack can be expected to provide 80% of its rated capacity after 300 charge/discharge cycles and 60% after 500 cycles. Storing, transporting or using the battery pack at temperatures exceeding 115 deg F/45 deg C or -4 deg F/-20 deg C will substantially reduce the cycle life of the battery pack. Operating Capacity and Standby Time: A fully-charged battery will provide 8 hours of typical operation, defined as speaking 35% of the time at mid volume, and 6 months of standby/idle time. Includes S1405 Rechargeable Lithium-ion Battery Pack: Input Voltage: 110-240 VAC. Nominal Voltage: 11.1, Capacity: 1300 mAh / 14.43 Wh. Universal input capable - compatible with all world currents with the appropriate adapter plug. Charging time: 4 hours. Product Dimensions: 4"H x 2.5"W x 1.25"D, Product Weight: 0.5 lbs. Includes: Mity-Meg Plus Megaphone, Includes S1405 Rechargeable Megaphone Battery for S602MR & S602R, Shoulder strap. Works with S1405 Rechargeable Lithium-ion Battery Pack (included) or 8 C-cell Batteries (not included). up to 8 hours continuous talk time with S1405 Rechargeable Lithium-ion Battery Pack (included). up to 40 hours continuous talk time 8 C-cell Batteries (not included).