20 Keys Wireless Numeric Keypad, Portable 2.4GHz Wireless Keyboard, with Calculator Function, Suitable for Computers and Laptops with Universal USB Charged with System

Wireless Numeric Keypad: Adopt advanced 2.4GHz wireless technology, no device driver is needed. USB receiver, stable signal transmission, almost no delay or interruption. The maximum use range is 10m. Multifunction: You can press "Enter" and "-" to switch to calculation mode, and then use the keyboard as a stand-alone calculator. It has 8 calculator function keys to improve work efficiency. Rechargeable: Built-in rechargeable battery. The USB cable is easy to charge and easy to use. The wireless keyboard also has an automatic sleep function, which reduces power consumption The 20-key wireless numeric keypad is made of sturdy ABS, the size is 155 * 88 * 20 mm, only 110g, it is easy to put in a bag or pocket for easy carrying Wide compatibility: suitable for computers, desktops, laptops, computers with universal USB ports and charged with Windows MacOSX systems