Features: It is made of high-quality materials, reliable and durable. Ultra-thin, portable and practical. Small size, light weight, and easy to carry. brand new and high quality 12 digits, AA Battery powered with for extra big clear display Professional general purpose scientific calculator cThe for touch design is very convenient to use. Automatic shutdown when not in use. Specifications: Dimension: about 150x120x50mm/5.9x4.72x1.97in Color:Black Supply Battery:1 x AA battery(Not Included) 12 Digits Material: ABS Package Includes: 1 x Calculator note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. for Wish you a pleasant shopping experience!