About this project 1.22-Keys numeric keyboard: The numeric keyboard supports NumLock, ESC, Tab, Delete, and more. With shortcut keys, you can directly open the computer calculator. The wireless external numeric keyboard of Muli Function 22 key laptops is more unique than most keyboards. 2. Portable and easy to use: Our numeric keyboard only weighs 87g. The digital keyboard adopts 2.4GHz wireless technology, which is plug and play. You just need to plug the receiver into the USB port. No device driver required, no latency or interruption, and fast data transmission speed. The maximum operating range can reach 32.8 feet. Insert the receiver into the battery compartment of the keyboard 3. Mute and touch comfort: Made of high-quality ABS material, providing very comfortable touch and precise control, with good elasticity and fast response, and reducing button sound. It also has automatic sleep function, reducing power consumption and reflecting energy-saving. Press any key to wake up the keyboard. 2 x AAA battery powered (not included) 4. Multi compatibility: The Foloda wireless numeric keyboard is suitable for PCs, laptops, and desktops with Windows 2000/XP/Vista/7/8/10 systems.