1. Introduction & Product Overview
Thank you for choosing the OMASSA Back Massager with Heat. This innovative 2-in-1 device is designed to provide deep tissue shiatsu kneading massage and serve as a lumbar support pillow, offering effective relief from muscle fatigue, soreness, and stiffness. Its portable design allows for versatile use in various settings, promoting relaxation and well-being.

Figure 1.1: OMASSA Back Massager with Heat and its remote control.

Figure 1.2: The massager's 2-in-1 design functions as both a deep kneading massager and a lumbar support pillow.
Key features include:
- 2-in-1 Multi-functional Design: Functions as a kneading massager and a lumbar support pillow.
- Double-Sided Soothing Heat Therapy: Offers low, medium, and high heat settings to improve blood circulation. Features an automatic 15-minute shut-off.
- Bi-Directional Deep Tissue Massage: Equipped with 8 deep tissue 4D massage nodes to alleviate muscle fatigue, soreness, and stiffness.
- Effective Pain Relief: Provides deep tissue massage for neck, back, shoulder, and leg pain, and muscle tension.
- Portable & Versatile: Comes with adjustable non-slip straps and includes a car adapter for use in various settings.
2. Safety Information
Please read all instructions carefully before use. Failure to follow safety guidelines may result in injury or damage to the device.
- Always unplug the massager from the power outlet when not in use or before cleaning.
- Do not use the massager near water or in damp environments.
- Keep the device away from heat sources and direct sunlight.
- Do not use if the power cord or plug is damaged.
- This device is not intended for medical use. Consult a doctor before use if you are pregnant, have a pacemaker, suffer from diabetes, or have any pre-existing medical conditions.
- The massager features an automatic shut-off after 15 minutes to prevent overuse.
- Keep out of reach of children.
3. Package Contents
Upon opening your OMASSA Back Massager package, you should find the following items:
- 1 x OMASSA Back Massager
- 1 x Hand Controller
- 1 x Wall Adapter
- 1 x Car Adapter
- 1 x User Manual

Figure 3.1: All items included in the OMASSA Back Massager package.
4. Setup
To set up your OMASSA Back Massager for use:
- Choose Power Source: Connect the massager to either the wall adapter for home/office use or the car adapter for in-vehicle use.
- Position the Massager: Place the massager on your desired chair (office chair, sofa, car seat) or flat surface.
- Secure with Straps: Use the adjustable non-slip straps to secure the massager to the back of a chair, ensuring it stays in place during use.
- Connect Hand Controller: Ensure the hand controller is securely connected to the massager.

Figure 4.1: The massager can be easily set up in a car or office environment.
5. Operating Instructions
The OMASSA Back Massager is operated using the included hand controller. Familiarize yourself with the buttons and their functions:

Figure 5.1: Hand controller for easy operation.
- Power Button (Ⓐ): Press to turn the massager ON or OFF.
- Massage Button (A): Activates the kneading massage function. Press to switch between massage modes (front side for kneading, back side for lumbar support with heat).
- Direction Button (Ⓑ): Changes the rotation direction of the massage nodes (bi-directional).
- Intensity Button (Ⓒ): Adjusts the massage intensity (3 levels).
- Mode Button (Ⓓ): Cycles through different massage modes (3 types).
- Heat Button (Ⓔ): Activates or deactivates the heat function. The massager offers 2 levels of heat.
- Heat Button (B): Specifically for activating heat when using the back side as a lumbar support pillow.
The 8 deep tissue 4D massage nodes provide a comprehensive massage experience. The heat function helps to soothe muscles and improve circulation. Remember that the device has a 15-minute auto-off feature for safety.
6. Usage Scenarios
The OMASSA Back Massager is versatile and can be used on various body parts and in different environments:
- Neck & Shoulder: Position the massager to target tension in your neck and shoulders.
- Back: Ideal for lower back, mid-back, and upper back pain relief.
- Abdomen: Can be used for gentle massage on the abdominal area.
- Thigh & Calf: Place under your thighs or calves for leg muscle relaxation.
Common usage environments include:
- Office chair for lumbar support and back massage during work.
- Sofa or couch for relaxation at home.
- Car seat during commutes or long drives (using the car adapter).

Figure 6.1: Versatile application of the massager for different body parts.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your OMASSA Back Massager:
- Cleaning: Disconnect the power before cleaning. Wipe the surface with a soft, slightly damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals.
- Storage: Store the massager in a cool, dry place away from direct sunlight when not in use. Avoid placing heavy objects on top of the massager.
- Avoid Punctures: Do not use sharp objects near the massager's surface, especially the mesh area, to prevent damage to the massage nodes.
8. Troubleshooting
If you encounter any issues with your OMASSA Back Massager, please refer to the following common troubleshooting steps:
- Massager Not Turning On: Ensure the power adapter is securely plugged into both the massager and a working power outlet. Check if the power button on the hand controller is pressed.
- No Heat: Verify that the heat function is activated on the hand controller. Allow a few minutes for the heat to build up.
- Massage Nodes Not Moving: Ensure the massager is powered on and the massage function is activated. Check for any obstructions.
- Unusual Noises: If you hear unusual noises, immediately turn off the massager and unplug it. Contact customer support for assistance.
If the problem persists after attempting these steps, please contact OMASSA customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 13.78 x 3.94 x 14.96 inches |
| Item Model Number | M2 |
| Item Weight | 4 Pounds |
| Power Source | Corded Electric |
| Material | Faux Leather |
| Manufacturer | OMASSA |
10. Warranty & Support
OMASSA offers a comprehensive 1-year warranty for your Back Massager. If your device encounters any issues during this period, we will replace a new unit for you at no cost.
For any questions, assistance, or warranty claims, please contact OMASSA customer support. We are committed to providing you with a satisfactory solution promptly.


