Solar Calculator High Color Dopamine 12 Bit Mechanical Key Scientific Computer Features: Portable calculator with a large 12-bit LCD display screen,clearly visible,allowing you to see numbers at a glance easy to store in a drawer or carry in a schoolbag or Briefcase; Suitable for home,school,and office use The basic standard calculator is made of polypropylene Ensure normal daily use; Candy colored design,reasonable button layout,beautiful and practical Electric digital calculators have button batteries and solar energy; More and convenient Product Description: Product Name: Solar Calculator High Color Dopamine 12 Bit Mechanical Key Scientific Computer Net weight:190g Product size: 14.5*15.5cm Package Content: 1x calculator Portable calculator with a large 12-bit LCD display screen,clearly visible,allowing you to see numbers at a glance easy to store in a drawer or carry in a schoolbag or Briefcase; Suitable for home,school,and office use The basic standard calculator is made of durable polypropylene Ensure normal daily use; Candy colored design,reasonable button layout,beautiful and practical Electric digital calculators have button batteries and solar energy; More durable and convenient