Take advantage of the high capacity and reduced environmental impact of TianQiu 3-Volt lithium coin cells to power your computer mainboard and small portable devices, such as your watches, remotes, keyless entry FOBs, laser pointers, calculators, toys, flashlights, health appliances, audio equipment, and more. Additional Details ------------------------------ Product description: Take advantage of the high capacity and reduced environmental impact of TianQiu 3-Volt lithium coin cells to power your computer mainboard and small portable devices, such as your watches, remotes, keyless entry FOBs, laser pointers, calculators, toys, flashlights, health appliances, audio equipment, and more.