Safety Information
Always follow the instructions provided with the massager. Do not use on broken skin or areas with inflammation. Avoid prolonged use on the same area to prevent discomfort or burns. Keep the massager clean and dry when not in use. Do not use while sleeping or taking a bath. Unplug the massager when not in use and store it in a cool, dry place. Consult a physician before use if you have any medical conditions or are pregnant.
Product Overview
The SereneLife Air Compression Knee Massager (Model: SLKNMSG14) is designed to provide targeted relief and therapy for knees, elbows, and shoulders. It features air compression, vibration, and heating modes, along with an ice pack for cold massage.
Key Features
- Fully adjustable straps for a comfortable fit (up to 28" thigh circumference).
- 4 airbags for comprehensive compression massage.
- 4 vibration modes and 2 heat settings.
- Includes an ice pack for cold therapy.
- Built-in rechargeable battery for portable use (up to 160 minutes / 8 cycles).
- Automatic shut-off after 20 minutes.

Image: SereneLife Air Compression Knee Massager (Model: SLKNMSG14) shown with its storage bag, USB cable, and cold therapy pack.
What's in the Box
- SereneLife Air Compression Knee Massager Unit
- Storage Bag
- USB Charging Cable
- Cold Therapy Pack

Image: Contents of the SereneLife Air Compression Knee Massager package.
Setup Instructions
Charging the Device
- Locate the USB charging port on the control unit.
- Connect the provided USB charging cable to the port and a suitable power source.
- The battery indicator on the control panel will show charging status.
- A full charge provides up to 160 minutes (8 cycles) of use.
Attaching the Massager
- Ensure the massager is powered off.
- Position the main unit over your knee, elbow, or shoulder.
- Use the adjustable straps to secure the massager firmly but comfortably. The straps are designed to fit up to a 28" thigh circumference.
- If additional length is needed for larger areas, utilize the included strap extenders.

Image: Illustration of the adjustable straps and dimensions for proper fit.

Image: Step-by-step guide for securing the massager straps.
Inserting the Cold Therapy Pack
- Freeze the provided cold therapy pack.
- Locate the sewn-in internal pouch holder within the massager.
- Carefully slip the frozen pack into the holder for cold massage therapy.

Image: Detail of the internal pouch for the cold therapy pack.
Operating Instructions
Control Panel Overview

Image: Detailed view of the massager's control panel.
Power On/Off
Press and hold the power button on the control unit to turn the device on or off.
Selecting Massage Modes
The device offers 4 distinct massage modes. Press the 'M' button to cycle through the available modes.
Adjusting Vibration Settings
Choose from 4 vibration settings using the dedicated vibration button.
Activating Heat Therapy
The massager features 2 heat settings. Press the heat control button to activate and adjust the desired heat level.
Adjusting Intensity
The device provides 3 levels of intensity for both compression and vibration. Use the '+' and '-' buttons to increase or decrease the intensity.
Automatic Shut-off
For safety and energy conservation, the massager will automatically turn off after 20 minutes of continuous operation.
Maintenance
- Cleaning: Wipe the massager's surface with a soft, damp cloth. Do not immerse the device in water.
- Storage: Store the massager in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided storage bag for protection.
- Battery Care: Recharge the battery regularly, even if not in frequent use, to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery; Power button not pressed correctly | Charge the device fully; Press and hold the power button for 3-5 seconds |
| No heat or vibration | Settings not activated; Device malfunction | Ensure heat/vibration modes are selected on the control panel; Contact customer support if problem persists |
| Discomfort during use | Straps too tight; Intensity too high; Direct skin contact with heat | Adjust straps for comfort; Lower intensity; Wear thin clothing between skin and device if using heat |
Demonstration Video:
Video: A seller demonstration of the 3-in-1 Smart Portable Knee Massager, showcasing its features and application.
Specifications
- Model Number: SLKNMSG14
- Brand: SereneLife
- Product Dimensions: 0.39 x 0.47 x 0.47 inches
- Item Weight: 2.16 Pounds
- Power Source: Battery Powered
- Material: Acrylonitrile Butadiene Styrene
- Color: White, Grey
- Manufacturer: Sound Around
- First Available Date: January 1, 2024
Legal Disclaimer
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.
Warranty and Support
For warranty information or technical support, please refer to the contact details provided in your product packaging or visit the official SereneLife website.





