1. Important Safety Information
Please read all safety warnings and instructions carefully before using this product. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- May cause burns if used for extended periods or on sensitive skin.
- Do not use on broken skin or areas with inflammation.
- Keep away from water.
- Charge using the provided USB-C cable only.
- Do not expose the device to extreme heat or direct sunlight.
- Consult a healthcare professional before use if you have any medical conditions or are pregnant.
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
2. Product Overview
The AIRSIDUN Cordless Knee Massager is designed to provide vibration massage and heat therapy to the knee area. It features a portable, cordless design for convenient use at home, in the office, or while traveling. The device aims to help relax knee pressure and fatigue, ease muscle tension, and improve circulation.

Image 2.1: The AIRSIDUN Cordless Knee Massager with its retail packaging and USB-C charging cable.
This massager can be used for various conditions including joint discomfort, swelling and stiffness, osteoarthritis, and sports injuries.

Image 2.2: Diagram illustrating various applications for the knee massager, including joint discomfort, swelling & stiffness, osteoarthritis, and sports injury.
3. Components
Familiarize yourself with the different parts of your AIRSIDUN Cordless Knee Massager:

Image 3.1: Labeled diagram of the knee massager components, including the Touch Screen Control Panel, Power/Charging Indicator, ABS Cover Shell, Breathable Cloth Mesh, Strap Buckle, Red Light, Vibration Pads, Fastening Straps, and USB-C Charging Port.
- Touch Screen Control Panel: For operating the device and adjusting settings.
- Power/Charging Indicator: Displays power status and charging activity.
- ABS Cover Shell: The durable outer casing of the device.
- Breathable Cloth Mesh: Inner lining for comfort and airflow.
- Strap Buckle & Fastening Straps: Adjustable straps to secure the massager to your knee.
- Red Light: Indicates heating function is active.
- Vibration Pads: Deliver the massage action.
- USB-C Charging Port: For connecting the charging cable.
4. Setup
4.1 Charging the Device
- Locate the USB-C charging port on the device.
- Connect the provided USB-C charging cable to the device and a suitable USB power adapter (not included).
- The Power/Charging Indicator will illuminate to show that the device is charging.
- A full charge typically takes approximately 3-4 hours. The indicator light will change or turn off once fully charged.
4.2 Fitting the Massager
- Sit in a comfortable position.
- Place the massager on your knee, ensuring the vibration pads and heating elements are positioned correctly over the desired area.
- Use the fastening straps and strap buckles to secure the massager firmly but comfortably around your knee. The straps are adjustable to fit various leg sizes.
5. Operating Instructions
The AIRSIDUN Cordless Knee Massager features an LED light touch screen for easy operation.

Image 5.1: A person relaxing while using the AIRSIDUN Knee Massager on their knee, illustrating in-home use.
5.1 Power On/Off
- To power on, press and hold the power button on the touch screen until the display illuminates.
- To power off, press and hold the power button again until the display turns off.
5.2 Adjusting Vibration Modes
The massager offers 3 levels of vibration intensity.

Image 5.2: Illustration of the three vibration levels (Auto, Low, High) and the 10-minute auto shut-off timer feature of the knee massager.
- Press the vibration button on the touch screen to cycle through the available modes: Auto, Low, and High.
- Select the intensity that provides the most comfortable experience.
5.3 Activating Heat Function
The device provides red light heating with 3 adjustable temperature levels.

Image 5.3: Diagram showing the internal heating elements and the three temperature settings: 110°F (Relaxing hot compresses), 120°F (Comfortable Massage), and 130°F (Premium enjoyment).
- Press the heat button on the touch screen to activate the heating function.
- Press the heat button repeatedly to cycle through the temperature levels: 113°F, 122°F, and 131°F.
- The red light indicator will illuminate when the heating function is active.
5.4 Automatic Shut-off Timer
The massager is equipped with a 10-minute auto shut-off timer to prevent overuse and conserve battery life.
- The device will automatically turn off after 10 minutes of continuous operation.
- To continue use, simply power the device on again.
6. Maintenance
6.1 Cleaning
- Ensure the device is powered off and unplugged before cleaning.
- Wipe the exterior of the massager with a soft, damp cloth.
- Do not use abrasive cleaners, solvents, or harsh chemicals.
- Do not immerse the device in water or any other liquid.
6.2 Storage
- Store the massager in a cool, dry place, away from direct sunlight and extreme temperatures.
- Keep out of reach of children and pets.
7. Troubleshooting
If you encounter any issues with your AIRSIDUN Cordless Knee Massager, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery or no charge. | Charge the device fully using the provided USB-C cable. |
| Vibration is weak or inconsistent. | Low battery. Incorrect mode selected. | Recharge the device. Ensure a higher vibration mode (e.g., High) is selected. |
| Heat function is not working. | Heat function not activated. Low battery. | Press the heat button to activate. Recharge the device. |
| Device turns off unexpectedly. | Automatic 10-minute timer activated. Low battery. | This is normal operation. Restart the device if desired. Recharge the device. |
If the problem persists after trying these solutions, please contact customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 9.57 x 6.38 x 5.71 inches |
| Weight | 1.95 Pounds |
| Item Model Number | fed6ecec-8c60-45af-9ab1-68ae467677fc |
| Batteries | 2 Lithium Ion batteries (included) |
| Power Source | Battery Powered |
| Material | Carbon Fiber |
| Special Feature | Heat, Vibration |
| Heating Levels | 3 levels (113°F, 122°F, 131°F) |
| Vibration Levels | 3 levels (Auto, Low, High) |
| Auto Shut-off | 10 minutes |
9. Warranty and Support
For warranty information or customer support, please refer to the product packaging or contact AIRSIDUN directly through their official website or the retailer where the product was purchased.
AIRSIDUN is committed to providing satisfactory solutions for any questions or concerns you may have regarding your product.