1. Introduction
Thank you for choosing the JOBYNA Knee Heating Pad. This manual provides essential information for the safe and effective use of your new heating pads. Designed to offer targeted heat therapy, these pads can help relieve muscle soreness, improve blood circulation, reduce joint swelling, and speed up injury recovery in the knee area and other body parts.

Image: JOBYNA Knee Heating Pads in use on a person's knees, highlighting the area of heat application.
2. Safety Information
Please read all safety warnings and instructions before using this product to prevent injury or damage.
- Burn Prevention: Always start with the lowest temperature setting and gradually increase as needed. Monitor skin for any signs of irritation or burns, especially during prolonged use. Do not use while sleeping unless the auto-off timer is set.
- Supervision: Do not use on infants, incapacitated individuals, or persons insensitive to heat. Adult supervision is required when used by children or individuals with limited physical, sensory, or mental capabilities.
- Medical Conditions: Consult a physician before use if you have any medical conditions, including but not limited to diabetes, circulatory problems, nerve damage, or open wounds.
- Electrical Safety: Use only with the provided power adapter. Do not use if the cord or controller is damaged. Do not immerse the controller or power cord in water.
- Overheating Protection: The device is equipped with NTC overheating protection for your safety.
- Storage: Store in a cool, dry place when not in use.

Image: Visual guide for using the heating pad, detailing the steps: securing the pad, connecting the controller, plugging into an AC outlet, and operating the device. Includes a warning about potential burns.
3. Package Contents
Your JOBYNA Knee Heating Pad package should include:
- 2 x JOBYNA Knee Heating Pads (Dark Blue)
- 1 x Smart Handheld Controller with 9.2ft Power Cord
- 1 x User Manual (this document)
4. Product Features
The JOBYNA Knee Heating Pad offers advanced features for effective heat therapy:
- Dual Knee Design: Comes as a pair (2 pads) tailored for simultaneous use on both knees, or individually.
- Rapid Heating: Achieves desired temperature within 20 seconds for quick relief.
- Wide Temperature Range: Continuous temperature settings from 86℉ to 158℉ (30℃ to 70℃), adjustable in 2℉ increments.
- Adjustable Timer: Automatic shut-off timer with settings from 10 to 90 minutes, adjustable in 5-minute increments.
- Smart Controller: Features an LED display for clear time and temperature readings, backlight for nighttime visibility, and a memory function to recall your last settings.
- Versatile Application: While designed for knees, the pads can also be applied to the abdomen, shoulder, arm, elbow, calf, wrist, and ankle for targeted relief.
- Comfortable Material: Made from super soft polyester fabric for a gentle touch and even heat distribution.
- Adjustable Fit: Features an adjustable magic strap design, fitting knee circumferences of 13.3-21.6 inches.
- Extended Reach: Equipped with a 9.2ft power cord for flexible use in various settings.
- Easy Maintenance: Hand washable after removing the controller.

Image: A woman comfortably seated on a couch, wearing the knee heating pads. The image visually communicates the product's benefits, including relief from muscle tension, stiffness, and improved blood circulation.

Image: This diagram illustrates key features of the heating pads, such as their reusability, hands-free design, skin-friendly and chemical-free material, and hand-washable nature. It also shows how to unplug for individual use, the super soft polyester fabric, and the adjustable magic strap.

Image: A collage demonstrating the multi-purpose application of the JOBYNA heating pad, showing it can be used on the knee, elbow, shoulder, abdomen, calf, and arm for tension and pain relief.
5. Setup
Follow these steps to set up your JOBYNA Knee Heating Pad:
- Position the Pad: Wrap the heating pad around your knee or desired body part. Ensure the pad covers the area requiring heat therapy. The semi-wrapped design is tailored for the front of the knee.
- Secure the Pad: Use the adjustable magic strap to secure the pad firmly but comfortably. Ensure it is snug enough to maintain contact with the skin without restricting circulation.
- Connect the Controller: Locate the connection port on the heating pad. Plug the controller's connector firmly into this port. If using only one pad, you can unplug the other pad's connector from the controller.
- Plug into Power: Insert the power plug of the controller into a standard 110V AC electrical outlet.

Image: This image provides a visual guide for using the heating pad, detailing the steps: securing the pad, connecting the controller, plugging into an AC outlet, and operating the device.
6. Operating Instructions
The smart handheld controller allows you to customize your heat therapy experience.

Image: A close-up of the smart handheld controller, showing its LED display for temperature and time, along with buttons for adjusting settings, powering on/off, and indicating the 9.2-foot power cord and AC110V power supply.
- Power On/Off: Press the power button (⏻) to turn the heating pad on or off. The LED display will illuminate.
- Set Temperature:
- Press the 'A Temp Setting' or 'B Temp Setting' button (🌡️A+ / 🌡️A- or 🌡️B+ / 🌡️B-) to adjust the temperature for each pad.
- The temperature range is 86℉ to 158℉ (30℃ to 70℃). Each press adjusts the temperature by 2℉.
- The default temperature setting is 122℉ (50℃).
- Set Timer:
- Press the 'Timing+' or 'Timing-' button (⏱️+ / ⏱️-) to set the auto-off timer.
- The timer range is 10 to 90 minutes. Each press adjusts the time by 5 minutes.
- The default timer setting is 30 minutes.
- The countdown will be displayed on the controller.
- Memory Function: The controller will remember your last comfortable temperature and time settings, even after unplugging.
- Nighttime Use: The intimate backlight design provides convenient visibility for nighttime usage.

Image: This image shows the versatility of the heating pads, depicting individuals using them while engaging in common activities such as reading, sleeping, watching television, and working, emphasizing the intelligent timing options (10-90 minutes).
7. Maintenance and Care
Proper care will extend the life of your JOBYNA Knee Heating Pad:
- Cleaning: The heating pads are hand washable. Before washing, ensure the controller and power cord are completely removed from the pads.
- Washing Instructions: Hand wash gently with mild detergent in cold water. Do not bleach, iron, or dry clean.
- Drying: Air dry completely before reattaching the controller and storing or using again. Do not tumble dry.
- Storage: When not in use, store the heating pads and controller in a clean, dry place, away from direct sunlight and extreme temperatures.

Image: This diagram illustrates key features of the heating pads, including their hand-washable nature.
8. Troubleshooting
If you encounter any issues with your JOBYNA Knee Heating Pad, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heating pad not heating. | Not plugged in correctly; power outlet issue; controller not connected; device off. | Ensure the power cord is securely plugged into a working outlet. Verify the controller is firmly connected to the heating pad. Press the power button on the controller to turn it on. |
| Controller display is off or flickering. | Loose connection; power supply issue. | Check all connections. Try plugging into a different power outlet. If the issue persists, contact customer support. |
| Temperature not reaching desired level. | Incorrect temperature setting; external factors (cold environment). | Increase the temperature setting using the controller. Allow a few minutes for the pad to reach the set temperature. Ensure the pad is in good contact with the skin. |
| Pad feels too hot. | Temperature setting too high. | Decrease the temperature setting immediately. If discomfort continues, discontinue use. |
9. Specifications
| Specification | Detail |
|---|---|
| Model Number | JB-FR-A33-DBL-US |
| Material | Polyester |
| Color | Dark Blue |
| Voltage | 110 Volts (AC) |
| Wattage | 35 watts |
| Temperature Range | 86℉ to 158℉ (30℃ to 70℃) |
| Timer Settings | 10 to 90 minutes |
| Power Cord Length | 9.2 feet |
| Knee Circumference Fit | 13.3-21.6 inches |
| Package Dimensions | 11.77 x 4.17 x 4.09 inches |
| Item Weight | 1.43 Pounds |
| Manufacturer | JOBYNA |
| Date First Available | May 23, 2024 |

Image: This image illustrates how the heating pad fits various leg sizes, indicating a thigh perimeter of 13.3-21.6 inches and a calf perimeter of 13.3-18.1 inches, highlighting its adjustable design.
10. Warranty and Support
JOBYNA is committed to providing high-quality products and excellent customer service.
- 365-Day Warranty: Your JOBYNA Knee Heating Pad is covered by a 365-day warranty from the date of purchase.
- 365-Day Free Replacement: In case of any manufacturing defects or issues within 365 days, you are eligible for a free replacement.
- 30-Day Free Return: You may return the product for a full refund within 30 days of purchase if you are not satisfied.
For any questions, concerns, or support needs, please contact JOBYNA customer service through the retailer's platform or visit the official JOBYNA store:


