Features: 100% brand new ! Provide excellent continuous power. High energy density, long life expantancy. Can be used withtoys, calculators, laser pointers, calculators, cameras, clocks, watches, computers, games, digital cameras, camcorders, PDAs, remote controls, electronic instruments, MP3 players, digital voice recorders, blood glucose meters, cholesterol testing meters, LED lights and other electronic appliances. Also known as: DL2450, BR2450, LM2450, 5029LC, KCR2450 Specifications: Lithium CR2450 Battery(Single Use) Voltage: 3V Diameter: 24 * 5.0mm Attention: Please keep batteries in dry and cool place. Do not recharge or dispose off in fire. Insert the battery in right direction and avoid short-circuit.