PRACTICAL AND STYLISH: External Number Pad allows you to get rid of the problem of slow speed of entering numbers. It does not take up much space and 2.4G wireless design can make the desktop look more sleek. Fits seamlessly against your laptop with exquisite keys | EASY TO SETUP AND CARRY: With 2.4G technology, you just need to plug the nano receiver into the USB port to enjoy the fast and stable signal transmission. Lightweight and perfect size to put in your laptop bag. Easy to carry when you are on the go | GOOD QUALITY AND ERGONOMIC TILT: The great spring action and comfortable key sizes allow for fast, soft typing without missing a key and make it an impeccable product. With ergonomic tilt, you can use it more comfortably for a long time | SHORTCUTS AND ANTI-SLIP DESIGN: Additional shortcuts keys are extra useful. With the calculator, escape, tab, delete, backspace button, it brings up the Windows on-screen calculator with a single key press for quick use. The number pad grips the desk well and doesn't move around with the rubber pad | EXTENDED SLEEP TIME and WIDE COMPATIBILITY: It will sleep after 20 minutes inactivity time which is perfect for accountants and auditors. We improved the shortcomings of sleeping after 10 minutes of non-use. Compatible with Android Windows 2000/ Me/ 98/ XP /Vista/ 7/ 8/10 system. NOTE: NOT compatible with MACBOOK PRO or any other devices which only have a TYPE-C port