• This set includes two AAAA NiMH rechargeable batteries and one charger. • AAAA batteries are commonly used in small electronic devices like laser pointers, active styluses, and some medical devices. • NiMH (Nickel-Metal Hydride) batteries offer good capacity and can be recharged hundreds of times, making them an economical and environmentally friendly choice. • The included charger is designed to safely and efficiently charge these specific AAAA NiMH batteries. • Being brand new, these batteries are ready for immediate use after an initial charge and will provide their full rated capacity.