Introduction
Thank you for choosing the cotsoco Cordless Shiatsu Neck and Shoulder Massager with Heat. This device is designed to provide deep tissue kneading massage and soothing heat therapy for various body parts, offering relaxation and muscle pain relief. Please read this manual carefully before using the product to ensure safe and effective operation.
Important Safety Information
- The heating function may be subtle if the ambient temperature is low. For a more noticeable effect, consider wearing thinner clothing or using the massager in a warmer indoor environment.
- A full charge can take up to 5 hours when the battery is completely drained.
- A fully charged battery provides 2-3 hours of use, depending on the heat level and massage speed selected.
- Do not use the massager while it is charging.
- After fully charging, long-press the power button to start the massager.
- To preserve battery life, avoid using a fast charging adapter, as this can affect the longevity of the lithium-ion battery.
- This massager includes a 15-minute automatic shut-off feature for safety and to prevent overheating.
- Do not use the massager on the head, elbows, knees, chest, or other bony parts of the body.
- Consult a healthcare professional if you have any medical conditions or concerns before using this product.
Product Overview and Components
The cotsoco Cordless Shiatsu Neck and Shoulder Massager is crafted with high-quality PU leather and breathable mesh fabric for comfort and durability. It features 16 3-dimensional deep kneading massage nodes and an optional heat function.

Image: Overview of the cotsoco massager highlighting its high-quality PU leather, breathable mesh fabric, USB Type-C charging port, and flexible straps.
- 16 Deep Kneading Massage Nodes: Designed for 3D deep tissue massage.
- Heat Function: Optional soothing heat therapy with LED red light.
- Control Panel: Integrated buttons for power, direction, speed, and heat.
- Flexible Straps: High-grade leather straps for adjusting pressure and positioning.
- USB-Type C Charging Port: For convenient recharging.
- Cordless Design: Powered by a rechargeable lithium-ion battery for portability.

Image: Close-up view of the massager's ergonomic design, illustrating the 16 deep kneading massage nodes and the optional heating function.
Setup
1. Initial Charging
Before the first use, ensure the massager is fully charged. Connect the provided USB-Type C charging cable to the massager's charging port and a suitable power source. A full charge can take up to 5 hours. The massager cannot be used while charging.
2. What's in the Box
Your package includes:
- 1 x cotsoco Cordless Shiatsu Neck and Shoulder Massager with Heat
- 1 x USB-Type C Charging Cable
- 1 x User Manual (this document)
- 1 x Carrying Bag (for convenient storage and transport)

Image: The complete set of items included in the product packaging: the massager, USB-C charging cable, user manual, and a convenient carrying bag.
Operating Instructions
1. Wearing the Massager
Place the massager around your neck and shoulders, or on the desired body part. Use the flexible straps to adjust the position and apply gentle pressure for a customized massage experience. You can also use the arm loops to apply additional pressure as needed.

Image: A woman demonstrating the proper placement of the cotsoco massager on her neck and shoulders, holding the flexible straps.
2. Control Panel Functions
The control panel is located on one of the flexible straps for easy access:
- Power Button (⏻): Press and hold for 3 seconds to turn the massager on or off. Heat function is on by default when powered on.
- Direction Button (↻): Press to switch the massage direction (clockwise/counter-clockwise).
- Speed Change Button (≡): Press to cycle through 3 massage speed levels: Low, Medium, and High.
- Heat Button (≈): Press to turn the heat function on or off.

Image: Detailed view of the massager's control panel, showing the power, direction, speed, and heat buttons for easy operation.
3. Applying Heat Therapy
The optional heat function provides soothing warmth (up to 107.6°F / 42°C) to complement the deep-tissue massage. This warmth is generated through gentle friction during use and is enhanced by an LED red light. Activate or deactivate using the Heat Button.

Image: A visual representation of how the advanced heating function helps relax stiff and sore muscles, indicating the 15-minute auto-off and overheating protection features.
4. Versatile Usage
The massager can be used on various body parts including the neck, back, shoulders, waist, feet, legs, and arms. Adjust the position and pressure as needed for optimal relief.

Image: A collage demonstrating the versatility of the cotsoco massager, showing its application on the neck, back, waist, feet, and arms for full body relief.
5. Official Product Videos
cotsoco Cordless Shiatsu Neck and Shoulder Massager with Heat - Overview
Video Description: This video provides a comprehensive overview of the cotsoco Cordless Shiatsu Neck and Shoulder Massager with Heat, demonstrating its features and how it can be used for various body parts. It highlights the cordless design, deep kneading, and heat therapy functions.
Portable Massagers for Neck and Back, 3D Deep Tissue Kneading
Video Description: This video showcases the portability and effectiveness of the cotsoco massager for neck and back. It illustrates the 3D deep tissue kneading action and how the device can be easily used on the go.
cotsoco Cordless Shiatsu Neck and Shoulder Massage with Heat - Features
Video Description: This video highlights the key features of the cotsoco Cordless Shiatsu Neck and Shoulder Massager, including its heat function, deep kneading nodes, and ergonomic design for targeted muscle relief.
Maintenance
1. Cleaning
The high-grade PU leather cover is durable and easy to clean. Wipe the surface with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
2. Storage
When not in use, store the massager in a cool, dry place, away from direct sunlight and out of reach of children. Use the provided carrying bag for protection.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Massager does not turn on. | Battery is drained or not fully charged. | Charge the massager fully using the USB-Type C cable. Ensure the power button is long-pressed to activate. |
| Heat function is not noticeable. | Low ambient temperature or thick clothing. | Use in a warmer environment or with thinner clothing. The warmth is generated through gentle friction. |
| Massager stops unexpectedly. | Automatic 15-minute shut-off activated. | This is a safety feature. You can restart the massager if desired. |
| Massager not working while charging. | Product design for safety and battery longevity. | The massager is designed not to operate while charging. Use it only when fully charged. |
Specifications
- Model Number: M861B
- Product Dimensions: 15.35 x 15.35 x 3 inches
- Item Weight: 3.53 Pounds
- Material: Faux Leather
- Power Source: Battery Powered (Rechargeable Lithium-ion)
- Heat Temperature: Up to 107.6°F / 42°C
- Automatic Shut-off: 15 minutes
- Charging Interface: USB-Type C
Warranty and Support
- Return Policy: If not fully satisfied, the product can be returned within 90 days for any reason.
- Warranty: This product comes with a 2-year warranty.
- Customer Service: 24-hour VIP customer service is available for any inquiries or support needs.
- For support, please refer to the contact information provided in your product packaging or visit the official cotsoco store on Amazon: cotsoco Store.


