Feature:1. Plug and play: This number pad and mouse combo is plug and play, there are no drivers to install, providing more convenience.2. 2.4GHz Wireless: This number pad and mouse combo adopts 2.4GHz wireless technology which ensures more stable performance.3. 1200 DPI: 1200 DPI responsive mouse provides one click with a flexible dot, Improving the efficiency of your work.4. Portable Size: This number pad and mouse combo is small and portable, suitable for home, office and travel.5. Wide Compatibility: This number pad and mouse is suitable for Win 2000, for Win XP, for Win Vista, for Win 7, for Win 8, for Win 10 operating system.Specification:Item Type: Number PadMaterial: ABSColor: BlackBattery: Mouse: AAA x 2 (Battery Not Included), Keyboard: AAA x 1 (Battery Not Included)Wireless Transmission Frequency: 2.4GHzInterface: USBKeyboard Keys: 18 KeysNumber of Keys: 4 KeysOperating Distance: Approx. 10m / 10.93ydOptical Resolution: 1200DPIPurpose: Lightweight, Portable, Can Be Used for Notebook Computers, Accounting, Banking, Securities, Etc., with Its Own Receiver, Intelligent Power Saving..Package List:1 x Keypad1 x Mouse1 x Receiver