Wireless Keyboard and Mouse Combo - 2.4GHz, 110 Keys, Colorful Round Keys (Blue) for Office & Gaming

Specification: Item Type: Keyboard Mouse Set Material: ABS Number of Mouse Keys: 3 keys Keyboard Number: 110 keys Supported System: for Windows XP/Win7/Win8/Win10 Mouse/Keyboard Interface: USB Mouse Battery: 1pc AA battery (not included) Keyboard Battery: 1pc AAA battery (not included) Usage: 1. Take out the USB receiver from the bottom of the mouse and plug it into the USB port of the computer. The computer will automatically install the driver program. 2. Open the battery cover at the bottom of the mouse, and load an AA battery (not included)into the battery warehouse (pay attention to the polarity of the battery must be correct). After the mouse is powered on, it will automatically code, and it can be used normally. 3. Open the battery cover at the bottom of the keyboard, and put a AAA battery (not included) into the battery bin (note that the polarity of the battery must be correct). After the keyboard is powered on, the code will be automatically adjusted, and it can be used normally. 4. When carrying or not in use, you can also put the USB receiver into the receiver slot at the bottom of the mouse. Package List: 1 x Mouse 1 x Keyboard 1 x Manual 1 x Receiver