Feature:1. BIG BUTTON: Large LCD display calculator is designed with a large round button, which is soft and flexible and comfortable to hold.2. LCD DISPLAY: Big button calculator has a large LCD screen with 12 digit display, easy to read by tilting the screen.3. ANTI SLIP: 12 digit calculator has an anti slip bottom pad for secure placement, anti slip and anti drop, and is suitable for desktop use.4. REMOVABLE KEYCAPS: Desktop calculator has removable keycaps, mechanical feel, easy to install and remove, easy to clean dust.5. AUTO SHUTDOWN: Mechanical calculator supports auto shutdown, it will automatically shut down after a few minutes of standby, saving power.Specification:Item Type: Big Button CalculatorMaterial: PlasticBattery Type: 1 x 1.5V Dry Battery (Shipped Without Batteries).Package List:1 x Big Button Calculator