This battery is environmentally friendly.The CR2032 battery is used for AB REMOTE SHUTTER, Remotes, calculators, watches, games, lighters, clocks, toys,bathroom scales,some kitchen scales and many other electronic devices.The voltage is 3V. The dimension is 0.79 in x 0.7 in. Ideal for small devices like watches, calculators, medical devices, key fobs, and more, coin cell batteries offer high performance in a small package.Housed in protective packaging, each battery can be individually removed without worry of losing the others. Multiple convenient pack sizes available. Pack of 5 pieces, CR2032 lithium coin cell replacement batteries for small devices