The SB600R Bundled Mini-Meg from AmpliVox Sound Systems includes a S600R Mini-Meg Megaphone and S1402 Rechargeable Lithium-ion Battery Pack. The S600R Mini-Meg from AmpliVox Sound Systems is a 10W Charge & Go megaphone with an interchangeable power source, which allows you to be heard up to 100 yards away. The S600R folds for easy portability. It features Talk and Siren modes, and has adjustable volume control.
For powering the included megaphone, the bundle comes with S1402 Rechargeable Battery pack. A fully-charged battery can provide 8 hours of typical operation, defined as speaking 35% of the time at mid volume, and over one year of standby/idle time. S1402 can be expected to provide 80% of its rated capacity after 300 charge/discharge cycles and 60% after 500 cycles.