Introduction
The AERLANG Cordless Neck and Back Massager with Heat (Model BK02) is designed to provide targeted relief for muscle soreness, stiffness, and fatigue in the neck, shoulders, and back. Featuring 3D Shiatsu kneading nodes, adjustable intensity levels, bi-directional rotation, and soothing heat, this device offers a customizable massage experience. Its cordless design enhances portability and convenience, allowing for use in various settings.
Important Safety Information
Please read all safety instructions carefully before using this product. Failure to follow these instructions may result in injury or damage to the device.
- Always unplug the massager from the power source before use.
- Do not use the massager while sleeping or taking a bath.
- Keep the massager away from water and heat sources.
- Do not use the massager if you have any medical conditions, are pregnant, or have any injuries or skin conditions in the area to be massaged. Consult a physician before use if you have any health concerns.
- Always follow the instructions provided with the massager.
Setup
Charging the Massager
Before initial use, fully charge the massager for 5 hours. For subsequent uses, charge for 2-3 hours. A flashing red light on the remote indicates that charging is needed. The red light will flash during charging and remain solid red when fully charged. This product cannot be operated during charging.

Image: Remote control with charging indicator and function buttons. Note: The massager cannot be operated while charging.
Placement and Securing
The massager is designed to be versatile. Use the adjustable strap on the back of the unit to secure it to a chair or position it comfortably on a sofa or bed. Ensure the massager is stable before use.
Video: Demonstrates the AERLANG massager being placed on a sofa for neck massage and its cordless operation.
Operating Instructions
The AERLANG massager features a multi-function remote control for easy operation.
- Power On/Off: Press the ON/OFF button to turn the massager on or off.
- Rotation: The massager features bi-directional rotation. Press the ROTATION button to change the direction of the kneading nodes. The rotation direction automatically changes every few minutes during operation.
- Intensity: Select from three adjustable intensity settings (Low/Medium/High) by pressing the INTENSITY button.
- Heat Function: Activate the soothing heat function by pressing the HEAT button. The massager offers two adjustable heat levels and dual heating zones for both neck and back.
Recommended Usage
- Place the massager on the desired body area: neck, shoulders, back, abdomen, waist, arm, thigh, or calf.
- For safety, do not use the massager for more than 15 minutes at a time. The device will automatically shut down after 15 minutes of continuous use.

Image: The massager's ergonomic design provides a perfect fit for the neck and back, enhancing comfort during use.

Image: The heated massager feature, illustrating its effect on blood circulation and pain relief with two heat levels and two heating zones.

Image: Demonstrates the multipurpose use of the massager on various body areas including the neck, abdomen, waist, arms, thighs, and calves.
Maintenance
Cleaning
- Ensure the massager is turned off and unplugged before cleaning.
- Wipe the surface of the massager with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
- Allow the massager to air dry completely before storing or next use.
Storage
- Store the massager in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid placing heavy objects on the massager during storage.
Troubleshooting
- Massager does not turn on: Ensure the device is fully charged. Check if the charging cable is securely connected if attempting to charge. Remember, the massager cannot be operated while charging.
- Heat function is not working: Verify that the heat button has been pressed. Allow a few minutes for the heat to become noticeable.
- Massage intensity feels too weak/strong: Adjust the intensity level using the intensity button on the remote control.
- Unusual noise during operation: Discontinue use and contact customer support if you experience any abnormal sounds.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BK02 |
| Product Dimensions | 12.8 x 4 x 15 inches |
| Item Weight | 3.7 Pounds |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Material | Leather, Nylon |
| Massage Nodes | 4 x 3D Shiatsu Kneading Nodes |
| Intensity Levels | 3 (Low/Medium/High) |
| Heat Levels | 2 |
| Automatic Shut-off | 15 minutes |
Warranty and Support
The AERLANG Cordless Neck and Back Massager is backed by a 1-year warranty. For any product inquiries, technical assistance, or warranty claims, please contact AERLANG professional customer support. Refer to the product packaging or the official AERLANG website for contact details.
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