Product description BUTTON CELL 1.5V - AG3 - LR41 - G3 - 192 Compatible with many products that use button cells of this type from Laser Pointers, watches, clocks, calculators, toys etc. Product Safety and Compliance DetailsProduct Safety and Compliance Details Warning This product contains a button/coin battery and is hazardous. Keep out of reach of children. Batteries can cause severe or fatal injuries in 2 hours or less if swallowed or placed inside any part of the body. Medical attention should be sought immediately if it is suspected that the battery has been swallowed or placed inside the body.