1、Dual power choose, solar or back‑up battery can choose, solar even can work as normal when it stay in night. 2、Tilted LCD display, easy to read, slim elegant, compact size, convenient for carrying. 3、Computer button design,wide keyboard with sensitivity keys,completely fit to ergonomic give you a super comfortable using experience. 4、10 digits make it most useful for calculations, and using durable materials,not easy to bend or break. 5、Performs basic math as well as various financial functions, perfect for office/home. 1 x Calculator1 x Instruction Manual Condition: 100% Brand NewItem Type: CalculatorMaterial: PlasticColor: Black, Red, Blue, White(Optional)Size: Approx. 114x190x37mm / 4.5x 7.5x 1.5in Weight: Approx.175g/ 6.2ozPower Supply: (Dual power supply) Solar Energy + 1 x AG10 button battery 80mAh(included)​