Feature 1BIG BUTTON: Large LCD display calculator is designed with a large round button, which is soft and flexible and comfortable to hold. 2LCD DISPLAY: Big button calculator has a large LCD screen with 12 digit display, easy to read by tilting the screen. 3ANTI SLIP: 12 digit calculator has an anti slip bottom pad for secure placement, anti slip and anti drop, and is suitable for desktop use. 4REMOVABLE KEYCAPS: Desktop calculator has removable keycaps, mechanical feel, easy to install and remove, easy to clean dust. 5AUTO SHUTDOWN: Mechanical calculator supports auto shutdown, it will automatically shut down after a few minutes of standby, saving power.Item Type: Big Button CalculatorMaterial: PlasticBattery Type: 1 x AAA Batteries (Shipped Without Batteries) .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; }Package List1 x BigButtonCalculator