The Bescor PRB-12XLRATM is a small and lightweight high performance Starved Electrolyte (Lead Acid) battery. The MM-12 is memory free and when properly maintained will offer a consistent run time over the life of the battery. A convenient shoulder strap is standard in addition to a sewn-in belt loop. The MM-12 offers a standard female Cigarette Connector in addition to a XLR Barrel Connector for use with any four-pin XLR powered device. This model comes with an automatic charger.