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