SONY Zinc-Chloride batteries - Size AAA / R03 - Blister of 4. Ideal for use in low drain applications such as remote controls, torches, toys, calculators, clocks and radios.

Technical specifications
Interchangeable with battery type: AAA, R03, UM-4, 24F, M24F
Battery type: AAA / R03 Zinc Carbon
Battery voltage: 1.5 V
Dimensions: 10 x 42 mm