Item Type: Solar Calculator_x000D_ Material: ABS_x000D_ Product Size: Approx. 15.5 x 10 x 3.5cm / 6.1 x 3.9 x 1.4in_x000D_ Power Supply: 1 x AAA Battery (Battery Not Included)_x000D_ Power Supply Mode: Solar and Battery Dual Power Supply_x000D_ Weight: Approx. 135g / 4.8oz 1Easy Use: Its tilt and Angle display makes it easy for you to see your calculations without straining your eyes 2Satisfying Feeling: Its roomy button size ensures that your finger is less likely to hit the wrong number, all while typing with a satisfying feeling 3Powerful Durable: Built from a sturdy and quality plastic body, it is built in the mind of everyday use. It's convenient, powerful and durable 4Complete Power Supply: With the help of solar and battery power systems, it can be fully powered in any lighting environment 5Portable Size: This pocket calculator is small in size and light in weight, you can put it in a bag, pocket or purse and use inbuilt stylus to record anytime, anywhere1 x_x000D_ _x000D_ Solar Calculator(Battery Not Included)