Introduction
The Kensington Slimblade Pro Wireless Trackball (Model K72081JP) is a versatile input device designed for precision and comfort. It offers multiple connectivity options and customizable features to enhance productivity. This manual provides detailed instructions for setting up, operating, and maintaining your trackball.
Product Features
- Three Connection Types: Connect via Bluetooth, 2.4GHz wireless, or a wired USB-C connection.
- Rechargeable Battery: The included USB-C cable allows for easy charging, providing approximately 4 months of battery life on a single charge.
- Precise Optical Tracking: Features dual sensors for accurate cursor tracking and scrolling with a 55mm ball.
- Twist Scrolling: The trackball supports horizontal twist scrolling for easy navigation of web pages and documents.
- Ambidextrous Design: Low-profile, symmetrical design suitable for both right-handed and left-handed users, reducing strain during long work sessions.
- Customizable Buttons: Use the free KensingtonWorks™ software to program the 4 buttons for personalized functionality and increased productivity.
- Wide Compatibility: Compatible with Windows 7 and later, and macOS 10.14 and later.
- 128-bit AES Encryption: Enhances security for wireless connections.
Setup
1. Unboxing
The package should contain the following items:
- Kensington SlimBlade Pro Trackball x 1
- USB-C to USB-A Charging Cable x 1
- USB-A to USB-C Adapter x 1
- Instruction Manual
- Compliance Sheet
- Warranty Card
- Guide Insert
2. Charging the Trackball
Before initial use, it is recommended to fully charge the trackball.
- Connect the included USB-C cable to the USB-C port on the trackball.
- Connect the other end of the USB-C cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The LED indicator on the trackball will show the charging status. A full charge provides approximately 4 months of battery life.

The USB-C port for charging the trackball's internal battery.
3. Connecting the Trackball
The Slimblade Pro offers three ways to connect to your device:

The Slimblade Pro offers Bluetooth, 2.4GHz wireless, and wired USB-C connectivity.
3.1. 2.4GHz Wireless Connection
- Locate the 2.4GHz USB receiver stored in the compartment on the underside of the trackball.
- Plug the USB receiver into an available USB-A port on your computer.
- Slide the connection switch on the trackball to the 2.4GHz wireless position (indicated by a Wi-Fi-like icon). The trackball should connect automatically.
3.2. Bluetooth Connection
- Slide the connection switch on the trackball to the Bluetooth position (indicated by a Bluetooth icon).
- On your computer, go to Bluetooth settings and search for new devices.
- Select "Kensington Slimblade Pro" from the list to pair the device.
3.3. Wired Connection
- Connect the included USB-C cable to the USB-C port on the trackball.
- Connect the other end of the USB-C cable to a USB-A port on your computer.
- Slide the connection switch on the trackball to the wired position (indicated by a USB cable icon).
Operating Instructions
1. Basic Operation
Use your fingers to move the 55mm trackball to control the cursor on your screen. The four buttons around the trackball are programmable and, by default, perform standard mouse functions such as left-click and right-click.

The symmetrical design allows comfortable use for both left and right-handed users.
2. DPI Adjustment
The DPI (Dots Per Inch) button allows you to adjust the cursor speed and sensitivity.
- Locate the DPI button on the side of the trackball.
- Press the DPI button to cycle through the available settings: 400, 800, 1200, and 1600 DPI.
- Choose the DPI setting that best suits your workflow and screen resolution.
3. Twist Scrolling
The Slimblade Pro features an intuitive twist-scrolling function.
- To scroll vertically, rotate the trackball horizontally (twist it) with your fingers.
- This motion allows for easy and precise navigation through documents and web pages.

Demonstration of horizontal twist scrolling for precise navigation.
4. KensingtonWorks™ Software
For advanced customization and to unlock the full potential of your trackball, download and install the free KensingtonWorks™ software.
- Visit the official Kensington website to download the KensingtonWorks™ software.
- Install the software on your computer.
- Use KensingtonWorks™ to customize button functions, adjust pointer speed, and fine-tune scrolling behavior. You can assign specific actions or macros to each of the four buttons, enhancing your productivity.

The KensingtonWorks software allows for extensive customization of the trackball's buttons.
Maintenance
1. Cleaning the Trackball
Regular cleaning of the trackball and its housing ensures optimal performance.
- To remove the trackball, push it up from the bottom through the opening on the underside of the device.
- Wipe the trackball with a soft, lint-free cloth.
- Clean the optical sensors inside the trackball housing with a cotton swab to remove any dust or debris.
- Reinsert the trackball by gently pressing it back into place until it clicks securely.
2. General Cleaning
Wipe the surface of the trackball with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these can damage the device's finish.
Troubleshooting
Trackball Not Responding
- Check the connection type (Bluetooth, 2.4GHz, wired) and ensure the switch on the trackball is in the correct position.
- For 2.4GHz wireless, ensure the USB receiver is securely plugged into your computer.
- For Bluetooth, ensure the trackball is paired and your computer's Bluetooth is enabled.
- For wired, ensure the USB-C cable is securely connected to both the trackball and your computer.
- Check the battery level. Recharge the trackball if necessary.
- Clean the trackball and optical sensors as described in the Maintenance section.
Cursor Movement is Erratic
- Clean the trackball and optical sensors. Dust or debris can interfere with accurate tracking.
- Adjust the DPI setting to a lower value if the cursor is too sensitive or jumps erratically.
Buttons Not Working
- Ensure KensingtonWorks™ software is installed and configured correctly if you have customized the buttons.
- Try resetting the trackball to factory default settings (refer to KensingtonWorks™ software or product support for instructions).
Battery Not Charging
- Ensure the USB-C cable is properly connected to both the trackball and the power source.
- Try a different USB-C cable or USB port to rule out cable or port issues.
Specifications
| Feature | Detail |
|---|---|
| Brand | Kensington |
| Model Number | K72081JP |
| Connectivity Technology | Bluetooth, 2.4GHz Wireless, Wired (USB) |
| Movement Detection | Optical |
| Number of Buttons | 4 |
| Hand Orientation | Ambidextrous |
| Compatible Devices | PC |
| Operating System | Windows 7 and later, macOS 10.14 and later |
| Average Battery Life | 4 months |
| Power Source | Battery Powered |
| Color | Trackball Red |
| Product Weight | 285 grams |
| Product Dimensions (L x W x H) | 15.3 cm x 13.3 cm x 5.6 cm (approximate) |
| Included Items | SlimBlade Pro Trackball, USB-C to USB-A Charging Cable, USB-A to USB-C Adapter, Instruction Manual, Compliance Sheet, Warranty Card, Guide Insert |

Detailed dimensions of the Kensington Slimblade Pro Trackball.

The trackball is compatible with both Windows and macOS operating systems.
Warranty and Support
Warranty Information
The Kensington Slimblade Pro Wireless Trackball comes with a 3-year warranty. Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting, or warranty claims, please visit the official Kensington support website or contact their customer service. You can find more information at www.kensington.com.
Product Overview Video
Watch this video for a visual overview of the Kensington Slimblade Pro Wireless Trackball, including its multi-connectivity, optical tracking, and ergonomic design.