NiMH 2500 mAh Uniross Hybrio AA Rechargeable Batteries Two 2350mAh rechargeable batteries with a 1.2 volt voltage Size of Battery: AA Cell Ni-Mh Applications include GPS, MP4 players, DVD players, cordless phones, small drones, mobile devices, power banks, tablets, and PCs. One pack of two AA cells is included in the package.