Introduction
Thank you for choosing the Lenovo KBRFBU71 Wireless Keyboard and Mouse Set. This ultra-thin combo is designed to provide a comfortable and efficient input solution for your notebook, desktop, business, office, or home computing needs. This manual will guide you through the setup, operation, and maintenance of your new wireless peripherals.

Setup Instructions
Follow these steps to quickly set up your wireless keyboard and mouse:
- Install Batteries in the Mouse:
- Locate the battery compartment cover on the underside of the mouse.
- Slide or lift the cover to open the compartment.
- Insert one AA battery, ensuring the polarity (+/-) matches the diagram inside the compartment.
- Replace the battery compartment cover.
- Install Batteries in the Keyboard:
- Locate the battery compartment cover on the underside of the keyboard.
- Slide or lift the cover to open the compartment.
- Insert two AAA batteries, ensuring the polarity (+/-) matches the diagram inside the compartment.
- Replace the battery compartment cover.
- Connect the USB Receiver:
- The USB receiver is typically stored inside the mouse's battery compartment for safekeeping. Remove it.
- Plug the USB receiver into an available USB port on your computer.
- Your computer should automatically detect and install the necessary drivers. This may take a few moments.
- Power On:
- Ensure the power switch on both the mouse and keyboard (if present) is in the 'ON' position. The mouse typically has a switch on its underside.

Operating Instructions
Once set up, your Lenovo KBRFBU71 wireless keyboard and mouse are ready for use.
Keyboard Usage
- Typing: Use the keyboard as you would a standard wired keyboard.
- Function Keys: The F1-F12 keys may have secondary functions (e.g., volume control, media playback, brightness adjustment) accessible by pressing the 'Fn' key simultaneously. Refer to your computer's documentation for specific Fn key combinations.
- Numeric Keypad: Utilize the dedicated numeric keypad for efficient data entry.
Mouse Usage
- Movement: Move the mouse on a flat surface to control the cursor on your screen.
- Clicking: Use the left button for primary clicks and the right button for secondary (context menu) clicks.
- Scrolling: The scroll wheel allows you to navigate documents and web pages vertically.
Maintenance
Proper care will extend the life of your wireless keyboard and mouse set.
- Cleaning: Use a soft, dry, lint-free cloth to clean the surfaces of the keyboard and mouse. For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution. Avoid excessive moisture.
- Battery Replacement: When performance degrades (e.g., lag, intermittent connection), replace the batteries in both the keyboard and mouse with fresh ones of the correct type (AA for mouse, AAA for keyboard). Dispose of old batteries responsibly.
- Storage: When not in use for extended periods, turn off the power switches on both devices to conserve battery life. Store the USB receiver inside the mouse's battery compartment to prevent loss.
- Avoid Extreme Conditions: Do not expose the devices to extreme temperatures, direct sunlight, or high humidity.
Troubleshooting
If you encounter issues with your wireless set, try these common solutions:
- No Connection/Lag:
- Ensure batteries are correctly installed and not depleted. Replace if necessary.
- Check that the power switches on both devices are 'ON'.
- Ensure the USB receiver is securely plugged into a working USB port on your computer. Try a different USB port.
- Move the keyboard and mouse closer to the USB receiver to rule out range issues or interference.
- Restart your computer.
- Keys Not Responding/Mouse Not Moving:
- Follow the steps for 'No Connection/Lag'.
- Clean any debris from around the keys or the mouse's optical sensor.
- Cursor Jumps Erratically:
- Clean the mouse's optical sensor.
- Use the mouse on a clean, non-reflective surface or a mouse pad.
Specifications
| Feature | Description |
|---|---|
| Model | KBRFBU71 |
| Brand | Lenovo |
| Type | Wireless Keyboard and Mouse Set |
| Connectivity | 2.4 GHz Wireless (USB Receiver) |
| Keyboard Power | 2 x AAA Batteries |
| Mouse Power | 1 x AA Battery |
| Compatible OS | Windows, macOS (standard functionality) |
| Keyboard Layouts (available) | Spanish, Japanese, English+Russian, English+Korean, European/German (specific layout depends on purchased model) |
User Tips
- For optimal wireless performance, keep the USB receiver within a few feet of the keyboard and mouse.
- If you experience interference, try plugging the USB receiver into a different USB port, especially one on the front of your computer or via a USB extension cable to get it closer to your devices.
- Always turn off the mouse and keyboard when transporting your laptop or when not in use to maximize battery life.
Warranty and Support
This Lenovo KBRFBU71 Wireless Keyboard and Mouse Set comes with a standard manufacturer's warranty. For warranty claims, technical support, or service inquiries, please refer to the warranty information provided with your purchase or visit the official Lenovo support website.
Please retain your proof of purchase for any warranty-related requests.





