1. Product Overview
The AJAZZ I300 is a lightweight, ergonomic vertical mouse designed for comfort and efficiency. It features dual-mode connectivity (Bluetooth and 2.4G wireless) allowing it to control up to three devices with easy switching. Its silent buttons and adjustable DPI settings make it suitable for various tasks, from office work to design.


Package Contents:
- Wireless mouse x 1
- Type-C charging cable x 1
- User Manual x 1
2. Product Layout

- Left Button
- Right Button
- Scroll Wheel / Middle Button
- DPI Button
- Forward Button
- Back Button
- Mode Switch Button (BT1 / BT2 / 2.4G)
- On/Off Toggle Switch
- Receiver Compartment (for 2.4G USB receiver)
- Foot Pads (with protective film)
Note: There is a protective film on the foot pads; please remove it before use.
3. Setup and Connectivity
The AJAZZ I300 mouse supports dual-mode connectivity: Bluetooth (BT1, BT2) and 2.4G Wireless. You can switch between these modes using the Mode Switch Button (7).

3.1 Powering On
- Locate the power switch (8) at the bottom of the mouse.
- Flip the switch to the "ON" position.
3.2 Bluetooth Connection (BT1 / BT2)
- Ensure the mouse is powered on.
- On your computer or device, turn on Bluetooth and navigate to the Bluetooth search interface.
- Press the Mode Switch Button (7) on the mouse to select either BT1 or BT2 channel.
- Long-press the Mode Switch Button (7) for more than three seconds. The green light for the selected BT channel (BT1 or BT2) will blink slowly, indicating the mouse is in pairing mode.
- On your device, search for "i300" in the Bluetooth device list.
- Click "Connect" to establish the connection.
- To connect a second Bluetooth device, repeat steps 2-6, selecting the other BT channel (BT2 if BT1 is used, or vice-versa).
3.3 2.4G Wireless Connection
- Locate the 2.4G USB receiver in the receiver compartment (9) at the bottom of the mouse.
- Plug the USB receiver into an available USB port on your computer.
- Press the Mode Switch Button (7) on the mouse to select the 2.4G connection mode.
- The mouse will automatically pair with the receiver. Once connected, it is ready for use.

4. Operation
4.1 DPI Adjustment
The mouse features three adjustable DPI levels: 800, 1200 (default), and 1600. You can switch between these sensitivities using the DPI Button (4) to match your preference and task requirements.

4.2 Silent Buttons
The AJAZZ I300 is equipped with silent micro switches, ensuring a quiet clicking experience (less than 30 dB). This feature is ideal for quiet environments like offices or libraries.

5. Charging and Battery Life
The mouse has a built-in 400mAh lithium battery and supports Type-C charging. A full charge takes approximately 2 hours and provides up to 60 hours of continuous use.

Charging Instructions:
- Connect the provided Type-C charging cable to the mouse's charging port.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The mouse will indicate charging status (e.g., LED indicator).
- Once fully charged (approx. 2 hours), disconnect the charging cable.
6. Maintenance
6.1 General Care
- Keep the mouse clean by wiping it with a soft, dry cloth.
- Avoid exposing the mouse to extreme temperatures, humidity, or direct sunlight.
- Do not disassemble the mouse, as this may void the warranty.
6.2 Battery Care
- If the mouse buttons become unresponsive or laggy, charge the mouse promptly.
- Use only batteries from reputable manufacturers if replacement is ever needed (though this model has a built-in battery, this is a general good practice for electronics).
7. Troubleshooting
7.1 Connectivity Issues
- Mouse not connecting via Bluetooth:
- Ensure the mouse is in pairing mode (green light blinking slowly).
- Check that your computer's Bluetooth driver is updated to the latest version.
- In your computer's Bluetooth settings, ensure the option "Allow to close this device" is disabled for the Bluetooth adapter.
- Try restarting both the mouse and your computer.
- Mouse not connecting via 2.4G Wireless:
- Ensure the USB receiver is securely plugged into a working USB port.
- Verify the mouse is switched to 2.4G mode using the Mode Switch Button (7).
- Try plugging the receiver into a different USB port.
7.2 Performance Issues
- Lag or unresponsiveness:
- Charge the mouse if the battery is low.
- If using Bluetooth, be aware that some delays can occur due to BT receiver or driver issues during reconnection, especially after the mouse enters power-saving mode.
- Reduce wireless interference by moving other wireless devices away from the mouse and receiver.
- Mouse automatically turns off:
- The mouse has a power-saving mechanism. If inactive for ten minutes, it will automatically enter sleep mode. Move the mouse or click a button to wake it up.
8. Specifications

| Feature | Detail |
|---|---|
| Brand | AJAZZ |
| Model | i300 |
| Type | Bluetooth Wireless, Vertical Mouse |
| Connectivity | BT 5.2 | Wireless 2.4G (Dual-mode) |
| Interface Type | Type-C (for charging) |
| Resolution (DPI) | 800 / 1200 (default) / 1600 (3 levels adjustable) |
| Number of Keys | 6 |
| Number of Rollers | 1 |
| Battery Capacity | 400mAh Lithium Battery |
| Charging Time | Approx. 2 hours |
| Battery Life | Approx. 60 hours (continuous use) |
| Wireless Frequency | 2400 MHZ - 2480 MHZ |
| Wireless Channels | 79 (automatic frequency hopping) |
| Wireless Working Distance | ≤ 10 meters (may vary with environmental interference) |
| Rated Voltage | 3.7V |
| Rated Current | ≤ 8mA |
| Dimensions (L x W x H) | 11.4 x 7.4 x 7.6 cm (approx. 4.48 x 2.91 x 2.99 inches) |
| Weight | 84 ± 5g (mouse only) |
| Hand Orientation | Right |
| Supported Systems | Windows XP / 7 / 8 / 10 / 11 |
| Origin | Mainland China |

9. User Tips
The AJAZZ I300 vertical mouse is designed with user comfort and efficiency in mind. Here are some tips to enhance your experience:
- Ergonomic Comfort: The bionic vertical design promotes a natural hand posture, reducing wrist rotation pressure and preventing "mouse hand" syndrome. Its thumb groove design conforms to the palm's curve, distributing pressure for comfortable use even during long work sessions.
- Lightweight and Portable: Weighing approximately 84g, this ultra-light mouse is ideal for travel and for professionals like designers and programmers who require precision and portability.
- Versatile Use: With its multi-mode connectivity and adjustable DPI, the mouse is suitable for various environments, including home, office, and even light gaming.




10. Warranty and Support
This product comes with a warranty. Please refer to the warranty card included in your package for details on warranty period and terms. Keep your purchase receipt and warranty card in a safe place.
Contact Information:
- Manufacturer: Shenzhen Ajazz Tongchuang Electronic Technology Co., Ltd.
- Address: 21st Floor, Building A, Zhongji Zhiyuan Building, Keneng Road, Dongkeng Community, Fenghuang Street, Guangming District, Shenzhen, China
- Phone: +86-0755-2740 7340
For more product information and support, you can follow AJAZZ on social media platforms:
- WeChat Official Account: Search for "AJAZZ黑爵外设"
- Douyin ID: Search for "24608628112"
A digital version of the user manual is also available for download: AJAZZ I300 User Manual (PDF)





