1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your CHERRY DW 9100 Slim Wireless Keyboard and Mouse Set. This rechargeable desktop set offers both 2.4 GHz wireless and Bluetooth connectivity, featuring a slim design and silent keystroke SX Scissor Mechanism for comfortable and efficient use in various environments.

Image 1.1: The CHERRY DW 9100 Slim Wireless Keyboard and Mouse Set, including the USB nano receiver.
2. Package Contents
Please check the package contents upon unboxing to ensure all components are present:
- CHERRY DW 9100 Slim Wireless Keyboard
- CHERRY DW 9100 Slim Wireless Mouse
- USB Nano Receiver
- USB-C Charging Cable
- User Manual (this document)
3. Setup
3.1 Charging the Devices
Both the keyboard and mouse are equipped with rechargeable lithium batteries.
- Connect the supplied USB-C charging cable to the USB-C port on the keyboard and mouse.
- Connect the other end of the cable to a powered USB port (e.g., computer, USB wall adapter).
- The status LED on each device will indicate the charging status. A full charge is indicated when the LED changes color or turns off (refer to Section 4.3 for LED indicators).
3.2 Connecting via 2.4 GHz Wireless
For a stable and fast wireless connection, use the included USB nano receiver.
- Locate the USB nano receiver.
- Plug the USB nano receiver into an available USB port on your computer.
- On both the keyboard and mouse, locate the connectivity switch. Set the switch to the 2.4 GHz position (often indicated by a receiver icon or "RF").
- The devices should automatically connect to your computer.
3.3 Connecting via Bluetooth
The set supports Bluetooth connectivity for devices that have Bluetooth capabilities.
- On both the keyboard and mouse, locate the connectivity switch. Set the switch to the Bluetooth position (often indicated by a Bluetooth icon).
- On your computer or device, open the Bluetooth settings.
- Initiate the pairing process on your device. The keyboard and mouse should appear in the list of discoverable devices (e.g., "CHERRY DW 9100 Keyboard", "CHERRY DW 9100 Mouse").
- Select each device to pair them. Follow any on-screen prompts, such as entering a pairing code for the keyboard.
Note: The keyboard and mouse can be paired with multiple Bluetooth devices. Use the connectivity switch to toggle between paired devices or 2.4 GHz mode.
4. Operating Instructions
4.1 Keyboard Functions
The CHERRY DW 9100 Slim Keyboard features a full-size layout with an SX Scissor Mechanism for silent and precise keystrokes.
- Standard Keys: All standard alphanumeric and symbol keys function as expected.
- Function Keys (F1-F12): These keys may have secondary functions (e.g., media control, volume, brightness) accessible by pressing the Fn key simultaneously. Refer to your operating system's settings for specific function key behavior.
- Numeric Keypad: Provides dedicated number entry.

Image 4.1: Side profile of the CHERRY DW 9100 Slim Keyboard, highlighting its thin design.

Image 4.2: Visual representation of the CHERRY SX Scissor Mechanism, responsible for silent and precise keystrokes.
4.2 Mouse Functions
The CHERRY DW 9100 Slim Mouse features 6 buttons and a scroll wheel for versatile navigation.
- Left/Right Click: Standard mouse buttons.
- Scroll Wheel: For vertical scrolling and as a middle click button.
- Side Buttons: Typically used for forward/backward navigation in web browsers.
- DPI Switch: A button, usually near the scroll wheel, allows adjustment of the mouse's sensitivity (DPI - Dots Per Inch). Pressing this button cycles through different DPI settings, indicated by the mouse's status LED.

Image 4.3: Top view of the CHERRY DW 9100 Slim Mouse, showing the left/right click buttons, scroll wheel, and DPI switch.

Image 4.4: Side view of the CHERRY DW 9100 Slim Mouse, illustrating the ergonomic design and side buttons.
4.3 Status LEDs
Both the keyboard and mouse feature status LEDs to provide information on battery level, charging status, and mouse resolution.
- Low Battery: The LED will flash or illuminate in a specific color (e.g., red) when the battery level is low, indicating that charging is required.
- Charging: The LED will illuminate while charging and typically change color or turn off when fully charged.
- Mouse Resolution (DPI): When adjusting the DPI, the mouse LED may briefly flash to indicate the current setting.
5. Maintenance
5.1 Cleaning
To maintain the performance and appearance of your devices:
- Disconnect the devices from your computer before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the surfaces.
- For the keyboard, use compressed air to remove dust and debris from between the keys.
5.2 Battery Care
The integrated lithium batteries are designed for long-term use.
- Recharge the devices when the low battery indicator appears.
- Avoid fully discharging the batteries frequently to prolong their lifespan.
- If storing the devices for an extended period, charge them to approximately 50% before storage.
6. Troubleshooting
If you encounter issues with your CHERRY DW 9100 Slim set, refer to the following common solutions:
6.1 Connectivity Issues
- No Connection (2.4 GHz):
- Ensure the USB nano receiver is securely plugged into a working USB port.
- Verify the keyboard and mouse connectivity switches are set to the 2.4 GHz position.
- Try plugging the receiver into a different USB port.
- Ensure the devices are sufficiently charged.
- No Connection (Bluetooth):
- Ensure the keyboard and mouse connectivity switches are set to the Bluetooth position.
- Confirm Bluetooth is enabled on your computer/device.
- Remove previous pairings from your device's Bluetooth settings and attempt to re-pair.
- Ensure the devices are sufficiently charged.
6.2 Power and Charging Issues
- Devices Not Charging:
- Check that the USB-C charging cable is properly connected to both the device and the power source.
- Try a different USB-C cable or a different USB power source.
- Ensure the power source is active.
- Short Battery Life:
- Ensure devices are fully charged before use.
- Battery life can vary based on usage patterns.
6.3 Mouse Tracking Issues
- Inaccurate or No Tracking:
- Ensure the mouse sensor is clean and free of debris.
- Use the mouse on a suitable surface (e.g., mouse pad). Highly reflective or transparent surfaces may cause issues.
- Adjust the DPI setting using the DPI switch on the mouse.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | JD-9100US-2 |
| Product Dimensions | 17.32 x 5.12 x 0.59 inches |
| Item Weight | 2.35 pounds |
| Batteries | Rechargeable Lithium (USB-C) |
| Connectivity Technology | Bluetooth, 2.4 GHz Radio Frequency (USB) |
| Special Feature | Rechargeable, Silent Keystroke (SX Scissor Mechanism) |
| Compatible Devices | Personal Computer |
| Manufacturer | CHERRY |
Note on Batteries: The product description indicates USB-C rechargeable lithium batteries. The specification "1 AA batteries required. (included)" in the source data appears to be a discrepancy. Please rely on the USB-C rechargeable feature for this model.
8. Warranty and Support
CHERRY products are manufactured to high-quality standards. For detailed warranty information, including terms and conditions, please refer to the official CHERRY website or the warranty card included with your product.
For technical support, troubleshooting assistance beyond this manual, or to inquire about replacement parts, please visit the official CHERRY support portal or contact their customer service directly.
- Official CHERRY Website: www.cherry.de/en/ (or regional equivalent)
- Customer Support: Refer to the website for contact details.





