The Uniross MW398 Universal Ni-Cd Battery Charger is a versatile mains charger compatible with various battery sizes such as AA, AAA, C, D, and 9V. With a capacity to charge up to 4 batteries at a time, this unit is designed to efficiently power your devices. Made in China, this charger is ideal for those looking for a reliable and compact solution for charging their NiCd batteries.