ITEM NAME:4pcs 3.6V LIR2032 Li-ion Coin Button Battery Rechargeable For Mouse Calculator Description Specifications: Color: As shown Diameter: 20mm Height: 3.2mm Capacity: 40mAh Rated Voltage: 3.6V Application: Tracking device/Motherboards/Wireless mouse and keyboards/Bathroom and kitchen scales/Solar Calculator, etc Package Include: 4pcs LIR2032 Li-ion Battery N ote: Due to the hand measurement, there have size error about 1-2cm. Item color displayed in photos may be showing slightly different since monitors are not calibrated same..4pcs LIR2032 Li-ion Battery. Detail Image. USA, Canada, United Kingdom, Austrilia, France, Germany, Spain, Ireland, Italy, Others. Canada, United Kingdom, Austrilia, France, Germany, Spain, Ireland, Italy, Others.