Premium materialMade of high-quality plastic, sturdy, this calculator with built-in button cell battery is durable and has a long service life.

Pocket sizeIdeal pocket size (6.8*12 cm/2.67 \"*4.72 \") for one-handed use, also light in weight (48.1g/0.10 lb), easy to carry and store.

Dual power supplyBoth solar cells and battery are used by this 8-digit calculator with silicone button (battery included). The solar panel fully charges the calculator as long as you use it in a well-lit area.

4 vibrant colorsAvailable in blue, pink, purple, teal, meeting your different color preferences, this mini pocket calculator is suitable for both boys and girls.

Multi-functionsThis simple calculator has all the necessary functions, including addition, subtraction, multiplication, division, percentage, square root, memory recall, memory clear and others, making it useful for schools, offices and businesses.