Features: 1.2.4GHz Wireless: The numeric keyboard uses 2.4GHz wireless technology, plug and play, no driver required, allowing for reliable and convenient use. 2.22 Keys: Wireless numeric keypad features a 22-key professional layout, ideal for use in banks, schools, offices, and other environments requiring frequent number input. 3.Stable Transmission: USB mouse and numeric keypad ensure stable signal transmission with no delay, providing effective wireless performance up to 10 meters. 4.Wide Compatibility: Number pad and mouse combo is compatible with Android tablets, Linux, Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10 systems. 5.ABS Material: The wireless number pad and mouse set is constructed from durable ABS material, offering a compact, slim design that is lightweight and easy to carry. Specification: Item Type: Number Pad Mouse Combo Material: ABS Connection Mode: 2.4G Wireless Effective Distance: 10m Number of Keys: 22 Keys Mouse Resolution: 1200DPI Battery Type: 1 x AAA (Keyboard), 1 x AA (Mouse) Alkaline Battery (not included) Package List: 1 x Number Pad 1 x Mouse 1 x Receiver 1 x User Manual Note: Batteries not included.