1. Product Overview
The AJAZZ AJ139 V2 MC is a high-performance tri-mode wireless gaming mouse designed for precision and comfort. It features a PAW3311 gaming sensor, multiple connectivity options, and a lightweight design, making it suitable for various gaming and productivity needs.

2. Package Contents
- AJAZZ AJ139 V2 MC Wireless Gaming Mouse x 1
- 1K 2.4G Receiver x 1
- Type-C Charging Cable x 1
- Magnetic Charging Dock x 1
- User Manual x 1
3. Setup Instructions
3.1 Charging the Mouse
The AJ139 V2 MC mouse supports two charging methods: wired charging and wireless dock charging. It is recommended to fully charge the mouse before first use.
- Wired Charging: Connect the provided Type-C cable to the mouse and a USB power source. The mouse will automatically switch to wired mode and begin charging.
- Wireless Dock Charging: Simply place the mouse on the magnetic charging dock, ensuring the magnetic contacts align. The mouse will begin charging wirelessly.

3.2 Connecting the Mouse
The AJ139 V2 MC offers three connection modes: Wired, 2.4G Wireless, and Bluetooth (BT).

- Wired Mode: Connect the mouse to your computer using the Type-C cable. The mouse will automatically switch to wired mode.
- 2.4G Wireless Mode:
- Locate the 2.4G receiver (USB dongle) stored in the mouse's bottom compartment.
- Plug the 2.4G receiver into an available USB port on your computer.
- Turn the mode switch at the bottom of the mouse to the '2.4G' position. The mouse should connect automatically.
- Bluetooth (BT) Mode:
- Turn the mode switch at the bottom of the mouse to the 'BT' position.
- On your computer or device, go to Bluetooth settings and search for new devices.
- Select 'AJAZZ AJ139 V2 MC' (or similar) from the list of available devices to pair.
3.3 Compatibility
The AJAZZ AJ139 V2 MC is compatible with a wide range of operating systems and devices, including Windows (Vista/XP/7/8/10/11), Mac, Android, iOS, and PS5.
4. Operating Instructions
4.1 DPI Adjustment
The mouse features a dedicated DPI adjust button, allowing you to cycle through different sensitivity levels. The native DPI range is 400-3200, adjustable with six DPI drivers. Through software, it supports up to 12000 DPI, with overclocking capabilities up to 24000Hz.

4.2 Polling Rate
The mouse supports a 1000Hz polling rate in wired and 2.4G wireless modes, offering low latency and smooth, precise handling for esports performance. In Bluetooth mode, the polling rate is 125Hz. The polling rate can be adjusted via the mouse software (125Hz, 250Hz, 500Hz, 1000Hz).

4.3 Customizable Buttons
The mouse features 6 programmable buttons, a mode switch, and a light switch button. Button functions can be customized using the dedicated software (e.g., Left-Click, Right-Click, Middle-Click, Forward, Backward, DPI Loop).
4.4 Sleep Settings
The mouse includes adjustable sleep settings to conserve battery life. You can configure the idle time before the mouse enters sleep mode (e.g., 5 minutes) and choose whether movement wakes it up or if the light effect should be turned off during sleep.
5. Maintenance
5.1 Battery Care
The mouse is equipped with a 500mAh rechargeable lithium battery. To maximize battery life:
- Charge the mouse regularly using the provided Type-C cable or charging dock.
- Avoid completely draining the battery frequently.
- Store the mouse in a cool, dry place when not in use for extended periods.

5.2 Cleaning
To maintain optimal performance and appearance:
- Use a soft, dry cloth to wipe the mouse surface.
- For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution.
- Avoid using harsh chemicals or abrasive materials that could damage the mouse.
- Ensure no liquid enters the mouse's internal components.
6. Troubleshooting
6.1 Connectivity Issues
- Mouse not responding: Ensure the mouse is charged. Check the mode switch at the bottom of the mouse to confirm it's set to the correct connection mode (Wired, 2.4G, or BT).
- 2.4G Wireless connection unstable: Ensure the 2.4G receiver is securely plugged into a USB port. Try a different USB port. Keep the mouse close to the receiver to minimize interference.
- Bluetooth connection issues: Ensure Bluetooth is enabled on your device. Unpair and re-pair the mouse in your device's Bluetooth settings.
6.2 DPI/Polling Rate Not Changing
- Ensure you are pressing the correct DPI adjustment button.
- If using software, ensure the software is installed correctly and the mouse is connected in a compatible mode (wired or 2.4G for full functionality).
6.3 Charging Problems
- Mouse not charging: Check the Type-C cable and charging dock for damage. Ensure the cable is securely connected to both the mouse/dock and the power source. For wireless charging, ensure the mouse is correctly aligned on the dock.
7. Specifications
| Feature | Specification |
|---|---|
| Product Brand | AJAZZ |
| Product Model | AJ139 V2 MC |
| Transmission Mode | Tripe Mode (2.4G / USB cable / Bluetooth) |
| Type of Connector | Type-C connector |
| Product Size | 125.39 x 63.31 x 38.19mm |
| Product Weight | Approx. 66g (Without receiver) |
| Shell Material | ABS injection molding |
| Number of Buttons | 6 buttons + 1 mode switch + 1 light switch button |
| DPI Adjustment | 400-3200 (Adjustable with six DPI drivers), up to 12000 DPI (software), 24000Hz (overclocked) |
| Sensor | PAW3311 (12000 DPI | 300 IPS | 35G) |
| Button Lifespan | Huano Blue 80 million clicks |
| Battery Capacity | 500mAh |
| Return Rate | 1000Hz (Wired / 2.4G), 125Hz (BT) |
| Support System | Windows Vista/XP/7/8/10/11, Mac |
| Foot Stickers | Teflon |


8. User Tips
- Software/Driver: For full customization of buttons, DPI, and polling rate, download the official driver software from the Ajazz website. Search for 'AJAZZ AJ139 V2 MC driver' to find the appropriate download.
- Lightweight Design: The mouse weighs approximately 66g, offering agile tracking and comfortable control for various grip styles (palm, claw, fingertip).
- Battery Life Optimization: To extend battery life, consider turning off the ambient light effect when not needed, especially in Bluetooth mode.


9. Warranty & Support
For warranty information, technical support, or further assistance, please refer to the official Ajazz website or contact your retailer. Keep your proof of purchase for warranty claims.