1. Introducció
The Kensington Pro Fit Ergo Vertical Wireless Trackball is designed to provide ergonomist-approved comfort and premium cursor control. Its unique 60-degree tilt angle promotes a natural handshake position, improving wrist and forearm posture to minimize strain. This device combines the familiarity of a traditional mouse with the benefits of a trackball, offering easy learning and enhanced precision.

Figure 1: Kensington Pro Fit Ergo Vertical Wireless Trackball Mouse
2. Configuració
2.1 Instal·lació de la bateria
The trackball operates on two AA batteries (not included due to shipping regulations). To install the batteries:
- Localitzeu el compartiment de la bateria a la part inferior del trackball.
- Obriu la tapa del compartiment de la bateria.
- Introduïu dues piles AA, assegurant-vos de la polaritat correcta (+/-).
- Tanqueu bé la tapa del compartiment de la bateria.
The trackball offers a long battery life of up to 18 months, though actual life may vary based on usage. A battery indicator light will signal when replacement is needed.

Figura 2: Compartiment de la bateria
2.2 Connexió sense fils
The trackball supports flexible wireless connectivity to up to three devices: one via a 2.4GHz nano dongle and two via Bluetooth.

Figure 3: Wireless Connection Options
2.2.1 2.4GHz Nano Dongle Connection
- Locate the 2.4GHz nano dongle, typically stowed inside the trackball body.
- Plug the nano dongle into an available USB port on your computer.
- Turn on the trackball using the power switch on its underside.
- The trackball should automatically connect to your computer.
2.2.2 Connexió Bluetooth
- Engegueu el trackball amb l'interruptor d'alimentació.
- Press and hold one of the Bluetooth pairing buttons (labeled '1' or '2') on the trackball until the corresponding LED indicator starts blinking, indicating pairing mode.
- A l'ordinador, navega fins a la configuració de Bluetooth i cerca dispositius nous.
- Select "Kensington Trackball" (or similar name) from the list of available devices to pair.
- Once paired, the LED indicator will stop blinking and remain solid for a few seconds.
- Repeat for a second Bluetooth device if desired, using the other Bluetooth pairing button.
2.3 Software Installation (KensingtonWorks)
While the trackball offers plug-and-play functionality with default settings, installing the free KensingtonWorks software allows for advanced customization. Download the software from the official Kensington weblloc.
- Visita el servei d'assistència de Kensington weblloc.
- Cerca "KensingtonWorks" and download the appropriate version for your operating system (Windows or Mac).
- Seguiu les instruccions a la pantalla per instal·lar el programari.
- Once installed, launch KensingtonWorks to customize your trackball settings.
3. Instruccions de funcionament
3.1 Configuració de DPI
The trackball features a triple DPI switch, allowing you to adjust cursor speed and precision. Press the DPI button on the underside of the trackball to cycle through the available settings. An LED indicator will show the current DPI level:
- One LED: 400 dpi
- Two LEDs: 800-400 dpi
- Three LEDs: 1500-800 dpi

Figure 4: DPI Switch and Indicator

Figure 5: DPI Level Indicators
3.2 Botons programables
The trackball features nine programmable buttons. By default, these buttons perform standard mouse functions (left-click, right-click, scroll). For advanced customization, use the KensingtonWorks software.
3.3 KensingtonWorks Customization
The KensingtonWorks software allows you to personalize your trackball experience:
- Assignació de botons: Assign a wide variety of program functions, keyboard shortcuts, or macros to each of the nine buttons.
- Velocitat del punter: Adjust the overall pointer speed to match your preference.
- Scrolling Speed and Orientation: Control the scrolling speed and choose between normal or reverse scrolling orientation.

Figure 6: KensingtonWorks Button Customization

Figure 7: KensingtonWorks Pointer Speed Settings

Figure 8: KensingtonWorks Scrolling Speed Settings
4. Manteniment
4.1 Neteja del trackball
To ensure smooth and accurate cursor control, it is recommended to periodically clean the trackball and its housing. The Pro Fit Ergo Vertical Wireless Trackball features a unique easy-to-clean design:
- Locate the trackball ejection button on the underside of the device.
- Press the ejection button to release the trackball.
- Remove the trackball and gently wipe it with a soft, lint-free cloth.
- Use a cotton swab or compressed air to clean any dust or debris from the trackball housing and optical sensors.
- Torneu a inserir el trackball a la seva carcassa fins que encaixi correctament al seu lloc.

Figure 9: Ball Ejection Button
5. Ergonomics and Health Tips
The Kensington Pro Fit Ergo Vertical Wireless Trackball is designed with ergonomics in mind to promote a healthier computing experience. Follow these tips for optimal comfort and to minimize potential strains:
- Postura correcta: Ensure your wrist, arm, and shoulder are aligned. The 60-degree tilt angle of the trackball helps maintain a natural handshake position.
- Avoid Reaching: Position your keyboard and trackball so you do not have to reach or stretch. Your hands and wrists should be in a neutral position, similar to when your arms hang loosely at your sides.
- Posició neutra del canell: Keep your wrist straight and in line with your forearm. Avoid bending your wrist excessively to either side.

Figure 10: Ergonomic Handshake Grip

Figure 11: Optimal Desk Setup

Figure 12: Correct Wrist Position

Figure 13: Hand and Forearm Alignment
6. Especificacions
| Característica | Descripció |
|---|---|
| Números de model | K75370 / K75264 |
| Connectivitat | 2.4GHz Wireless (via nano dongle), Bluetooth (x2) |
| Configuració de DPI | 400 dpi, 800-400 dpi, 1500-800 dpi (adjustable via switch) |
| Botons | 9 botons programables |
| Angle d'inclinació | 60 degrees (ergonomic) |
| Diàmetre de la bola de seguiment | 34mm (thumb-operated) |
| Tipus de bateria | 2 x piles AA |
| Durada de la bateria | Up to 18 months (usage dependent) |
| Compatibilitat de sistemes operatius | Windows, Mac |
7. Solució De Problemes
7.1 Problemes de connectivitat
- No connection (2.4GHz): Ensure the nano dongle is securely plugged into a USB port. Try a different USB port. Ensure the trackball is powered on.
- No connection (Bluetooth): Ensure Bluetooth is enabled on your computer. Re-enter pairing mode on the trackball and re-pair with your device. Ensure the trackball is powered on.
- Connexió intermitent: Move the trackball closer to your computer. Avoid obstructions between the trackball and the receiver/device.
7.2 Problemes de moviment del cursor
- Jerky or unresponsive cursor: The trackball or optical sensors may be dirty. Refer to Section 4.1 for cleaning instructions.
- Cursor too fast/slow: Adjust the DPI settings using the DPI button (Section 3.1) or fine-tune in KensingtonWorks software (Section 3.3).
7.3 Button Functionality Issues
- Botons que no responen: Ensure the trackball is connected. If using KensingtonWorks, check your custom button assignments. Try resetting to default settings in KensingtonWorks.
7.4 Problemes amb la bateria
- Trackball not powering on: Replace the AA batteries with fresh ones. Ensure batteries are inserted with correct polarity.
- Autonomia curta de la bateria: Battery life can vary based on usage. Ensure the trackball is turned off when not in use to conserve power.
8. Consells d'usuari
- Ajust ergonòmic: Take time to adjust to the vertical design. It may feel different initially, but consistent use will help your wrist and forearm adapt to the more natural position.
- Customize for Workflow: Utilize the KensingtonWorks software to program frequently used commands to the nine buttons. This can significantly speed up your workflow, especially in applications like AutoCAD.
- Neteja regular: Make cleaning the trackball a routine. Dust and debris can accumulate quickly and affect performance. The easy ejection button makes this a quick task.
9. Garantia i Suport
For detailed warranty information, technical support, and additional resources, please visit the official Kensington weblloc web. Hi podeu trobar preguntes freqüents, descàrregues de controladors i informació de contacte del servei d'atenció al client.
Weblloc: www.kensington.com





