Brand: DURACELLUnit count: 2 countDuracell High Power Lithium 123 batteries - Up to 40 Percent more power (vs IEC standard test minimum average duration for CR17345 size Results may vary by device and usage patterns)Duracell High Power Lithium 123 batteries use high-purity lithiumGuarantee for 10 years in storage with Duralock Power Preserve TechnologyDuracell High Power lithium batteries are available in a variety of sizes: CR2, 123, 28L, 1/3NBatteries: 2 CR123A batteries required.Product Dimensions: 3 x 1 x 3 cm; 40 Grams