Item Type: BlueSwitchCalculatorMaterial: ABSBattery: AAA Battery x 1 (Included)Battery Capacity: 700mAhScreen: 10 Digit LCD DisplayKey: 20 Keys, Mechanical Blue Switch .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Blue Switch: Dot retro keycaps, simple and beautiful, with mechanical blue switch paragraph sense, mechanical sense is stronge, crisp keys. 2LCD Display: Ten digit screen display, large font, reduce errors, improve efficiency, removable design, easy to clean. 3Intelligent Shutdown: Calculator intelligent shutdown, long lasting battery life, calculator 7 minutes without any operation, will automatically shut down into standby mode (press ON C key to power on) 4Antislip Feet: Soft feet are shock absorbing and antislip to prevent the body from colliding and rubbing against the desktop, preventing it from slipping and falling. 5ABS Material: Calculator is made of ABS material, wear resistant and durable, not easy to damage, can be used for a long time.