Optical tracking engine, no moving parts.2. Long key life: More than 10 million strokes times.Mouse Features:1. Auto Sleep: No power button required, automatically enter the hibernation mode.4. Portable: Ergonomic design, thin and compact Mini Number pad can be put in a laptop bag or briefcase for efficiently entering data wherever you go.

Plug and Play: Just plug the receiver into the USB port, no device drivers required.2. Use the Number Pad, you will find your work efficiency and productivity will be improved greatly!Number Pad Features:1. Just need to insert the receiver to the device's USB interface, perfectly creating a dedicated space for numeric data entry. Perfect For Extending Your Keyboard, Easy Your Life !Sunreed 18 Keys Wireless Numeric Keypad is a perfect accessory to complete your workspace. (Note: This numeric keypad for laptop is not compatible with Mac system) Compatible: Works with PC and desktop computers that have Chrome OS, Windows XP / Vista / 7 / 8 / 10 operating systems.Power-saving design: Sleep mode enabled automatically, no power button needed, extend battery life ( AAA and AA battery is included ).Ergonomic design: The number pad for laptop integrated ergonomic tilt provides support to help prevent wrist strain, ideal for those working on spreadsheets, accounting files or financial applications.Keys are easy and silent to press, greatly speed up your productivity Comfortable to use: Large, full-size 18 keys, soft concave buttons for this wireless numeric keypad, up to 10 million strokes times.Just one USB port to connect the number pad and mouse, The mouse has space to store USB receiver Easy to use: Using 2.4 GHz Wireless technology, plug and play, no device drivers needed, fast data transmission, almost no delays and dropouts, Up to 32.8FT working range.

Sunreed wireless numeric keypad