Features: Large display: Upright LCD screen with better view; Automatic shutdown (not used for 10 minutes). Power supply: Two button batteries (not included) helps ensure that the calculator works. Durable silicone button: Good touch, ABS plastic material, light weight. The configuration is reasonable and the operation is comfortable. Non-slip design: It adopts non-slip gasket and is not easy to slide during operation. Ideal for home and office use: Perform common math and various financial functions, ideal for adults and students. Specification: Product Name: Calculator Model: JS-105 Material: Plastic Color: Orange, Red, Blue, Green (optional) Adapter battery: 2*Button Battery (not included) Size: Approx. 13 * 7.5 * 1 cm / 5.1 * 3.0 * 0.4 in Weight: 78.5 g Package Iist: 1 * Calculator 1 * User Manual 1、Large display: Upright LCD screen with better view; Automatic shutdown (not used for 10 minutes). 2、Power supply: Two button batteries (not included) helps ensure that the calculator works. 3、Durable silicone button: Good touch, ABS plastic material, light weight. The configuration is reasonable and the operation is comfortable. 4、Non-slip design: It adopts non-slip gasket and is not easy to slide during operation. 5、Ideal for home and office use: Perform common math and various financial functions, ideal for adults and students.