This is a genuine Olympus Li-42B Battery, suitable for a range of cameras and photography equipment. With a capacity of 740mAh and a chemical composition of Li-Ion, this battery is a reliable choice for any photographer. Compatible with various Olympus cameras, this battery is perfect for those who want to capture the perfect shot without worrying about running out of power. Whether you're a professional photographer or an amateur, this Olympus Li-42B Battery is an essential piece of equipment for your camera bag.