1. Introduction
Thank you for choosing the MassaMAX MT339 4D Massage Chair. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your new massage chair. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Important Safety Instructions:
- Always unplug the massage chair from the electrical outlet immediately after using and before cleaning.
- Do not use while bathing or in a shower.
- Do not place or store the product where it can fall or be pulled into a tub or sink.
- Do not place in or drop into water or other liquid.
- Never use pins or other metallic fasteners with this appliance.
- Close supervision is necessary when this appliance is used by, on, or near children, invalids, or disabled persons.
- Use this appliance only for its intended use as described in this manual. Do not use attachments not recommended by the manufacturer.
- Never operate this appliance if it has a damaged cord or plug, if it is not working properly, if it has been dropped or damaged, or dropped into water.
- Keep the cord away from heated surfaces.
- Never use while sleeping or drowsy.
- Never drop or insert any object into any opening.
- Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
- To disconnect, turn all controls to the off position, then remove plug from outlet.
- This appliance is designed for household use only.
3. Product Overview
The MassaMAX MT339 is a sophisticated 4D massage chair designed to provide a comprehensive full-body massage experience. Key features include an extended SL-Track, intelligent body scanning, Zero Gravity reclining, Graphene heating, deep yoga stretch programs, foot rollers, and hands-free voice control.

Figure 3.1: MassaMAX MT339 4D Massage Chair in Space White.
Key Features:
- 4D Massage Experience with Extended SL-Track: Enjoy adjustable speed and rhythm with 4D rollers along a long SL-track that follows your back and seat area.
- Smart Body Scan + Zero Gravity Comfort: The chair automatically adjusts to your body shape and reclines into a comfortable Zero Gravity posture.
- Graphene Heating + Full-Body Air Massage: Gentle graphene-powered warmth in the lower-back area combined with full-body air cushions for soothing comfort.
- Foot Rollers & Calf Massage: Triple-action foot rollers and calf air cushions provide a refreshing experience.
- Hands-Free Voice Control + 22 Automatic Programs: Select from 22 preset programs and adjust settings using voice commands.
4. Setup
The MassaMAX MT339 massage chair requires some assembly. Please ensure you have adequate space and assistance for unpacking and positioning the chair. The minimum doorway width required is 29.92 inches.

Figure 4.1: MassaMAX MT339 dimensions and zero space recline feature, showing a 2-inch (5cm) slide down against the wall.
Initial Assembly Steps:
- Unpack all components carefully.
- Attach the footrest to the main chair body.
- Connect the controller and power cable.
- Position the chair, ensuring at least 2 inches (5 cm) of space from the wall for the Zero Space recline feature.
5. Operating Instructions
This section details how to operate your MassaMAX MT339 massage chair. For a visual guide, please refer to the official video manual below.
Video 5.1: MassaMAX MT339 Video Manual. This video provides a comprehensive tutorial on operating the massage chair, including starting a massage, adjusting settings, and using various features.
5.1. Basic Operation
- Starting a Massage: Press the power switch to turn on the chair. The display will show the MassaMAX logo. Select an automatic function from the main menu to begin a massage. (Refer to Video 5.1, 0:06)
- Automatic Body Shape Detection: After selecting a mode, the chair will automatically adjust the backrest and footrest. It will then perform a body shape detection to customize the massage. You can wait for completion or press the 'X' button to skip. (Refer to Video 5.1, 0:22)
- Shoulder Position Adjustment: After body detection, the chair will beep. If the detected shoulder position differs from your actual position, use the up/down arrows on the screen to adjust it. (Refer to Video 5.1, 0:30)
- Pause/Continue Massage: During a massage, press the pause button on the screen or side control panel to temporarily stop. Press it again to resume. (Refer to Video 5.1, 0:41)
5.2. Massage Customization
- Massage Intensity Adjustment: Use the '+' or '-' buttons next to the '4D' icon on the screen to adjust the intensity of the 4D massage rollers. There are 5 adjustable levels. (Refer to Video 5.1, 0:47)
- Automatic Massage Modes: The chair offers 22 automatic programs categorized under VIP, Healthcare, and Special. Select the desired program from the menu. (Refer to Video 5.1, 0:55)
- Massage Techniques: In Manual mode, you can select from 6 different massage techniques: Kneading, Tapping, Knead & Tap (simultaneous), Shiatsu, 4D, and Knocking. The speed and width of these techniques can be adjusted. (Refer to Video 5.1, 1:05)
- Customizing Back Massage Area: In Manual mode, you can customize the massage area to fixed point, local, upper back, lower back, or full back. Use the up/down keys to adjust the roller position. (Refer to Video 5.1, 1:24)
- Airbag Massage: Control upper and lower body airbag functions separately. Airbag intensity can be adjusted in 3 levels. (Refer to Video 5.1, 1:47)
- Foot Rollers & Calf Massage: The foot rollers and calf air cushions can also be adjusted in intensity. (Refer to Video 5.1, 1:53)
5.3. Advanced Features
- Voice Control Function: Click the 'Voice' key on the screen to enable or disable voice control. Once enabled, you can use voice commands like "Hi Alice" followed by commands such as "Massage on" or "Stretch massage." (Refer to Video 5.1, 1:58)
- Heating Function: Click the 'HEAT' button to turn on or off the Graphene heating function in the lower back area. The heating shawl provides additional warmth to the shoulder, back, waist, and abdomen. (Refer to Video 5.1, 2:19)
- Program Customize and Recall: Use the 'Customise' icon to save your preferred massage settings or recall previously saved programs. (Refer to Video 5.1, 2:28)
- Zero Gravity & Reclining Adjustments: Access the 'Angle' icon to adjust the chair's recline. Options include Zero Gravity, footrest adjustment, seat up/down, and calf up/down. (Refer to Video 5.1, 2:37)
- Bluetooth Connectivity: Click the Bluetooth icon to enable/disable Bluetooth. Connect your audio device to the chair's Bluetooth (e.g., 'Massage') to stream music through the chair's audio system. (Refer to Video 5.1, 3:10)
- Time Adjustment: Click the time icon to adjust the massage duration. Each press increases the duration by 5 minutes, up to a maximum of 30 minutes. (Refer to Video 5.1, 3:31)
- USB Charging Port: The chair is equipped with a USB charging port to conveniently charge your mobile devices during your massage. (Refer to Video 5.1, 3:41)
Video 5.2: MassaMAX MT339 4D Massage Chair Overview. This video highlights the main features and benefits of the massage chair.
Video 5.3: MassaMax MT339 Massage Chair Quick Demo. A short demonstration of a user interacting with the massage chair's features.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your MassaMAX MT339 massage chair.
Cleaning:
- Exterior: Wipe clean with a soft, damp cloth. Do not use abrasive cleaners or harsh chemicals.
- Interior: For the faux leather, use a mild leather cleaner or a damp cloth. Avoid excessive moisture.
- Ensure the chair is unplugged before any cleaning.
Storage:
- When not in use for extended periods, store the chair in a cool, dry place.
- Use the included protective cover to shield the chair from dust and debris.

Figure 6.1: Protective cover for the MassaMAX MT339 massage chair.
7. Troubleshooting
If you encounter any issues with your MassaMAX MT339 massage chair, please refer to the following basic troubleshooting steps. If the problem persists, contact customer support.
- Chair not powering on: Ensure the power cord is securely plugged into both the chair and a working electrical outlet. Check the main power switch.
- Massage rollers not moving: Verify that a massage program has been selected and the chair has completed its body scan.
- Voice control not responding: Ensure the voice control function is enabled on the control panel. Speak clearly and at a moderate volume.
- Bluetooth not connecting: Make sure Bluetooth is enabled on both your device and the massage chair. Check for the chair's name (e.g., 'Massage') in your device's Bluetooth settings.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | MassaMAX |
| Model Name | MT339 |
| Color | Mt339-space White |
| Material | Faux Leather, Iron Frame |
| Product Dimensions (D x W x H) | 60.63"D x 29.92"W x 44.57"H |
| Item Weight | 87 Kilograms |
| Maximum Weight Recommendation | 300 Pounds |
| Recommended Uses | Relaxing |
| Room Type | Indoor |
| Required Assembly | Yes |
| Additional Features | Automatic, 4D Massage, SL-Track, Zero Gravity, Body Scan, Graphene Heating, Voice Control, Bluetooth, USB Charging |
| UPC | 850036071303 |
9. Warranty & Support
MassaMAX massage chairs are provided with a 3-year coverage, including expert support and 24/7 customer service. We have over 50 after-sales service points across the U.S. to ensure prompt assistance for product maintenance or repair.
Contacting Support:
For any questions or support needs, please use the following methods:
- Scan the QR code below with your smartphone.
- Click "Ask a question" on the seller's page: MASSAGE CHAIR MAX Seller Page
- Customer Service Phone: 866-909-6062

Figure 9.1: Scan for customer service.