UNIVERSAL COMPATIBILITY? Wireless numeric pad works with laptop and desktop computers that have Windows 2000/XP/Vista/7/ 8/10 systems. Not fully compatible with Mac OS. Long Service Life?Keypad with non-slip rubber base protection to prevent it from sliding on the desktop. The good spring prevents the key position from shaking at will, and the gap between keys is small, which is not easy to get dust. Keypad is solid due to its metal frosted backplane. Using laser character carving character process, clear handwriting and wear resistance does not fade, greatly prolong the service life, can bring better user experience. Slim & Comfortable? Ergonomic tilt design can provide comfort and help reduce pressure on your wrist. The keys are thin, and the mini-sized numeric keyboard takes up little space so that you can carry it with you in your bag or file bag. This is a universal keypad designed for Spreadsheet, Accounting and Financial Applications. Convenient & Silent?18 independent keypad with NumLock, Delete for easy input and correction. Made of high quality Material which offer great comfortable touch and precise control, good resilience fast response and reduce the press sound. When using the keyboard, silent input enables us to focus more on our work without disturbing others. 2.4G Wireless Connection?Using advanced 2.4GHz wireless technology, no device drivers needed. Simply plug the receiver into the USB port to start using the keyboard directly, no delays and dropouts, fast data transmission. Signal transmission stability, working range up to 33ft (10M). (The USB Receiver is placed in the battery compartment of the keypad.).