Feature: 1. Plug and play: This number pad and mouse combo is plug and play with no drivers required, offering added convenience. 2. 2.4GHz Wireless: Utilizes 2.4GHz wireless technology for reliable and stable connectivity. 3. 1200 DPI: Equipped with a 1200 DPI responsive mouse for precise cursor control, enhancing work efficiency. 4. Portable Size: Compact and lightweight design makes it ideal for home, office, or travel use. 5. Wide Compatibility: Compatible with Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8, and Windows 10 operating systems. Specification: Item Type: Number Pad Material: ABS Color: Black Battery: Mouse requires 2 x AAA batteries (not included), Keypad requires 1 x AAA battery (not included) Wireless Transmission Frequency: 2.4GHz Interface: USB Keyboard Keys: 18 keys Number of Keys: 4 keys Operating Distance: Approximately 10m (10.93 yards) Optical Resolution: 1200 DPI Purpose: Lightweight and portable; suitable for notebook computers, accounting, banking, securities, and similar applications; includes built-in receiver and features intelligent power-saving function. Package List: 1 x Keypad 1 x Mouse 1 x Receiver