Brand new and high quality Supports Bluetooth-compatible connection, without complicated cable connection, and can be used with various devices conveniently and freely. Supports three working modes, including Bluetooth-compatible keyboard, numeric keypad, and calculator, to meet different usage requirements. Unique transparent shell is fashionable and simple, showing the sense of science and technology and enhancing the product's appearance. In addition to conventional digital input, it also has the function of a calculator, which can perform basic mathematical operations and provide more practical functions. Small and lightweight, easy to carry and store, convenient to use on any occasion. Specifications: Material: ABS Keys: 21 Power: 5V ≤650ma Color: White / Black Size: Approx. 120.5x82.5x37.8mm/4.74x3.24x1.48inch Note: 1.Please allow 1-2cm error due to manual measurement, please make sure you do not mind before ordering. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Numeric Keypad