Introduction
The Osaki OS-Pro 4D DuoMax is an advanced 4D massage chair engineered to deliver a comprehensive relaxation experience. It integrates intelligent sensors to scan various body metrics, customizing the massage to individual preferences and targeting specific areas for optimal therapeutic benefit.
Safety Information
Always consult the user manual for specific safety instructions and warnings provided by the manufacturer. Ensure proper body positioning during use. Avoid using the massager if you have certain medical conditions or implants; consult a physician if unsure. Adhere to all electrical safety guidelines for powered massagers, including proper grounding and avoiding use near water. Do not attempt to repair or modify the chair yourself.
Setup
Unboxing and Placement
Carefully remove all packaging materials. Ensure the chair is placed on a level, stable surface. Due to its weight (354 Pounds), it is recommended to have assistance during placement. Allow adequate space around the chair for recline functions and air circulation. The chair dimensions are 68 inches (length) x 31.5 inches (width) x 50 inches (height).

This image illustrates the physical dimensions of the Osaki OS-Pro 4D DuoMax massage chair. The chair measures 68 inches in length, 31.5 inches in width, and 50 inches in height, providing a clear understanding of its footprint.
Power Connection
Connect the power cord securely to the chair's power input and then to a grounded electrical outlet. Ensure the power source matches the chair's voltage requirements. The chair operates via a corded electric power source.
Operating Instructions
Initial Use and Settings
Before first use, ensure the chair is properly assembled and connected to power. The chair features an intelligent health detection system that scans various metrics to tailor the massage. Utilize the 4D massage mechanism and the 8-roller track massage system for a comprehensive experience.

A detailed view of the massage chair's digital control panel, which features a touchscreen interface. The screen shows various massage settings, including shoulder, foot, 4D intensity, speed, and air pressure adjustments for different body areas. Power and pause buttons are also visible.
Key Features and Modes
- Zero Gravity: Reclines the chair to a position that elevates your legs above your heart, reducing pressure on the spine.
- Dual Roller 4D Mechanism: Provides advanced massage movements that extend in and out, up and down, and side to side, mimicking human hands.
- Intelligent HealthPro: Utilizes sensors to detect body metrics and customize massage programs.
- 8 Roller-Track Massage: Offers extensive coverage along the SL-Track for a full-body massage.
- 2 Heating Cores: Provides soothing heat therapy to enhance muscle relaxation.
- Piano Key Massage: A unique massage technique integrated into the chair's functionality.
Using the Control Panel
The chair is operated via its integrated control panel. Select desired settings based on target body areas and preferred massage intensity. Utilize the various techniques available, including the 4D massage mechanism and roller-track massage. Ensure adequate space around the massager during operation, especially when reclining.

This image displays the Osaki OS-Pro 4D DuoMax SL-Track Massage Chair, highlighting its sleek black design and ergonomic structure. The chair features a modern aesthetic with integrated armrests and a comfortable seating area.
Maintenance
Cleaning
To clean the faux leather material, use a soft, damp cloth with a mild, non-abrasive cleaner. Avoid harsh chemicals or solvents that could damage the finish. Wipe dry immediately. Regularly dust the chair to prevent buildup.
Care and Storage
Keep the chair away from direct sunlight and extreme temperatures to prevent material degradation. When not in use for extended periods, it is recommended to cover the chair to protect it from dust. Ensure the power cord is unplugged when cleaning or moving the chair.
Troubleshooting
Common Issues
- Chair not powering on: Check if the power cord is securely plugged into both the chair and the electrical outlet. Verify the outlet is functional.
- Massage rollers not moving: Ensure the chair is not in a paused state. Check the control panel for any error messages.
- Unusual noises: If you hear abnormal sounds, immediately stop using the chair and contact customer support.
For issues not listed here, or if troubleshooting steps do not resolve the problem, please contact Osaki customer support.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 68 x 31.5 x 50 inches |
| Item Model Number | OS-Pro 4D DuoMax |
| Manufacturer | Osaki |
| Material | Faux Leather |
| Item Weight | 354 Pounds |
| Power Source | Corded Electric |
| Use For | Back |
Warranty and Support
For detailed warranty information, please refer to the documentation included with your purchase or visit the official Osaki website. For technical support, service, or parts inquiries, please contact Osaki customer service directly. Contact information can typically be found on the manufacturer's website or in your product registration materials.





