JOMAA 78 Keys Dual Mode Wireless Trackball Keyboard Instruction Manual

1. Product Overview

The JOMAA 78 Keys Dual Mode Wireless Trackball Keyboard offers versatile connectivity and ergonomic design for enhanced productivity across multiple devices. Featuring both 2.4GHz wireless and Bluetooth 5.0, it allows seamless switching between up to three connected devices. The integrated 19mm optical trackball provides precise cursor control, eliminating the need for a separate mouse and saving valuable desk space. Its compact, lightweight, and energy-efficient design makes it ideal for various computing environments.

Image 1: JOMAA 78 Keys Dual Mode Wireless Trackball Keyboard

This image displays the sleek, silver-colored JOMAA 78 Keys Dual Mode Wireless Trackball Keyboard, highlighting its compact layout and integrated trackball. The image also shows icons indicating system-wide compatibility (Windows, Mac, iOS, Android), multi-device association (three devices), and dual wireless connectivity (Bluetooth/2.4G).

2. Package Contents

• JOMAA 78 Keys Dual Mode Wireless Trackball Keyboard
• 2.4GHz USB Receiver (stored inside the keyboard's battery compartment)
• USB Charging Cable
• Quick Start Guide
• 2 x AA Batteries (included, pre-installed in some models)

Image 2: JOMAA Keyboard Package Contents Diagram

This diagram illustrates the various components of the JOMAA keyboard, including the keyboard itself, the left and right mouse buttons, the roller, Caps Lock indicator, charging and low voltage alarm lights, and the 19mm trackball. It also details the DPI adjustment keys (F1-F4) and the function keys for switching between Bluetooth 1, Bluetooth 2, and USB modes.

3. Product Features

• Dual-Mode Wireless Connectivity: Supports stable 2.4GHz wireless (nano receiver included) and advanced Bluetooth 5.0 connection.
• Multi-Device Pairing: Easily pair with and switch between up to 3 devices (PC, tablet, phone) simultaneously.
• Wide Compatibility: Broadly compatible with Windows, macOS, iOS, and Android operating systems.
• Integrated Trackball Design: Features a built-in 19mm precision optical trackball for accurate and smooth cursor control, eliminating the need for a separate mouse.
• Energy-Efficient: Low power consumption (≤10mA working current) for long-lasting battery life with 2 AA batteries.
• Portable Design: Compact 78-key layout and lightweight (403g) for travel or clutter-free workspaces.
• Plug-and-Play: No drivers needed for 2.4G connection; quick Bluetooth pairing.
• User-Friendly Ergonomics: Thoughtful key layout and thumb-operated trackball designed to reduce arm movement and wrist strain.

Image 3: JOMAA Keyboard Multi-Device Compatibility

This image illustrates the keyboard's ability to connect to multiple devices, including a smartphone, tablet, and desktop computer, via Bluetooth (BT1, BT2) and a 2.4G USB receiver, allowing for seamless switching between them.

4. Setup Instructions

4.1. Battery Installation

1. Locate the battery compartment on the underside of the keyboard.
2. Slide open the battery cover.
3. Insert 2 AA batteries, ensuring correct polarity (+/-).
4. Close the battery cover securely.

4.2. 2.4GHz Wireless Connection

1. Locate the 2.4GHz USB receiver, usually stored in the keyboard's battery compartment.
2. Plug the USB receiver into an available USB port on your computer or device.
3. Slide the power switch on the keyboard to the 'ON' position.
4. Press the 'FN' key + '3' key (labeled 2.4G) to select 2.4G mode. The indicator light will illuminate.
5. Your device should automatically detect and connect to the keyboard.

4.3. Bluetooth Pairing

The keyboard supports two Bluetooth channels (BT1 and BT2).

1. Slide the power switch on the keyboard to the 'ON' position.
2. Press and hold the 'FN' key + '1' key (for BT1) or 'FN' key + '2' key (for BT2) for 3-5 seconds until the corresponding Bluetooth indicator light starts blinking rapidly. This indicates the keyboard is in pairing mode.
3. On your device (computer, tablet, smartphone), go to Bluetooth settings.
4. Search for new devices and select "JOMAA Keyboard" (or similar name) from the list.
5. Follow any on-screen prompts to complete the pairing process. The indicator light on the keyboard will stop blinking and remain solid once connected.
6. To pair another device, repeat steps 2-5 using the other available Bluetooth channel.

5. Operating Instructions

5.1. Switching Between Devices

Once paired, you can switch between connected devices by pressing the 'FN' key along with the corresponding channel key:

• FN + 1: Switch to Bluetooth Device 1
• FN + 2: Switch to Bluetooth Device 2
• FN + 3: Switch to 2.4GHz USB Receiver Device

5.2. Trackball Usage

The integrated 19mm optical trackball is located on the right side of the keyboard. Use your thumb to control the cursor movement. The left and right mouse click buttons are positioned conveniently next to the trackball.

Image 4: JOMAA Keyboard Trackball and X-Structure

This image highlights the smooth trackball for accurate and precise cursor positioning. It also features a diagram illustrating the X-Structure of the keys, which provides a steady and great rebound feeling for comfortable typing.

5.3. Adjusting Trackball DPI (Cursor Speed)

You can adjust the trackball's DPI (dots per inch) to change cursor sensitivity:

• FN + F1: 800 CPI
• FN + F2: 1000 CPI
• FN + F3: 1200 CPI
• FN + F4: 1600 CPI

5.4. Media and Function Keys

The F1-F12 keys have secondary media functions. To activate these, press the 'FN' key simultaneously with the desired F-key.

• FN + F5: Previous Track
• FN + F6: Play/Pause
• FN + F7: Next Track
• FN + F8: Mute
• FN + F9: Volume Down
• FN + F10: Volume Up

6. Battery Information and Charging

The keyboard operates on 2 AA batteries. For optimal performance and battery life, use high-quality alkaline batteries. The low power consumption design ensures extended usage.

• Low Voltage Alarm: An orange indicator light will illuminate when the battery level is low, signaling that batteries need replacement.
• Charging: If your model supports rechargeable batteries, use the provided USB charging cable to connect the keyboard to a power source. The charging indicator light will show charging status.

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the keyboard surface. For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution. Avoid excessive moisture.
• Trackball Cleaning: Periodically remove the trackball (if removable) and clean its housing and the ball itself to ensure smooth operation.
• Storage: When not in use for extended periods, turn off the keyboard to conserve battery life. Store in a cool, dry place.

8. Troubleshooting

8.1. Connectivity Issues

• No Connection: Ensure the keyboard is powered on and the correct channel (BT1, BT2, or 2.4G) is selected.
• 2.4GHz: Verify the USB receiver is securely plugged into your device. Try a different USB port.
• Bluetooth: Ensure Bluetooth is enabled on your device and the keyboard is in pairing mode (blinking indicator). Remove previous pairings on your device and try re-pairing.
• Interference: Move the keyboard closer to your device and away from other wireless devices that might cause interference.

8.2. Keyboard Not Responding

• Battery Check: Replace batteries if the low voltage indicator is on or if the keyboard is unresponsive.
• Power Cycle: Turn the keyboard off, wait a few seconds, then turn it back on.
• Re-pair: If issues persist, try re-pairing the keyboard with your device.

8.3. Trackball Not Working

• Clean Trackball: Dust or debris can affect trackball performance. Clean the trackball and its housing as described in the Maintenance section.
• DPI Setting: Ensure the DPI setting is not too low (FN + F1). Adjust to a higher setting if needed.

9. Specifications

Image 5: JOMAA Keyboard Dimensions and Specifications

This image provides a detailed view of the keyboard's dimensions (28.6cm length, 14.9cm width, 3.1cm height) and lists key specifications such as transmission distance (7-10m), number of keys (78), compatible OS (Windows 7/10/11, Mac 10.6-15.2), operating current (≤10mA), trackball size (19mm), weight (403g without battery), and operating voltage (3V).

10. Warranty and Support

For warranty information, technical support, or customer service inquiries, please refer to the official JOMAA website or contact their customer support directly. Keep your purchase receipt for warranty claims.