Features: brand new and high quality It is made of high-quality materials, reliable and durable. Solar power generation, energy saving and environmental for protection. Two power sources: solar and 1 AA battery (not included). Modern design, practical and practical. Ultra-thin, portable and practical. Small size, light weight, and easy to carry. cThe for touch design is very convenient to use. Automatic shutdown when not in use. Specifications: Size: Approx 15X12x4cm/5.91x4.72x1.57in Color: Black Weight:170g Material: ABS Applicable Battery Type: Solar / AAA Battery(Battery not include) Language: English 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 Package includes: 1 x Calculator