1. Introduction
Thank you for choosing the Vinsetto Massage Office Chair. This chair is designed to provide comfort and support during long hours of work or study, featuring a 6-point vibrating massage system, lumbar heating, adjustable height, and a reclining function with a footrest. Please read this manual carefully before assembly and use to ensure proper operation and to maximize your experience.

2. Important Safety Instructions
Please observe the following safety precautions to prevent injury or damage to the product:
- Ensure all components are securely fastened before use.
- Do not stand on the chair.
- Do not use the chair if any parts are missing or damaged.
- Keep children and pets away from the chair during assembly.
- Use the chair on a flat, stable surface.
- Unplug the massage function power adapter when not in use or before cleaning.
- Do not expose the electrical components to water or excessive moisture.
- If you experience any discomfort during massage, discontinue use immediately.
3. Package Contents
Before assembly, please ensure all parts are present and undamaged. The package should contain:
- Backrest with integrated massage and heating elements
- Seat cushion with integrated massage elements
- Pair of armrests
- Headrest pillow
- Extendable footrest mechanism
- Star base with 5 casters
- Gas lift cylinder and cover
- Massage remote control with power adapter
- Assembly hardware (screws, washers, Allen wrench)

4. Assembly and Setup
Follow these general steps to assemble your chair. Specific instructions may vary, refer to the included assembly diagram if available.
- Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the star base until they click into place.
- Install Gas Lift: Place the gas lift cylinder into the center hole of the star base. Cover it with the telescopic plastic cover.
- Attach Armrests to Seat: Secure the armrests to the sides of the seat cushion using the provided screws. Ensure the massage wiring is not pinched.
- Attach Backrest to Seat: Connect the backrest to the seat cushion and armrests using the appropriate screws.
- Place Assembled Top onto Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and stable.
- Connect Massage Power: Locate the power cable for the massage function, usually extending from the backrest or seat. Connect it to the provided power adapter.
- Attach Headrest Pillow: The headrest pillow is typically adjustable and can be positioned for comfort.
5. Operating Instructions
5.1 Height Adjustment
To adjust the seat height:
- To raise: While seated, lift the lever located under the seat on the right side (Figure 3) and slightly lift your weight off the seat. The chair will rise. Release the lever at the desired height.
- To lower: While seated, lift the lever and apply pressure to the seat. The chair will lower. Release the lever at the desired height.

5.2 Recline Function and Footrest
The chair features a recline function up to 155 degrees and an extendable footrest for relaxation.
- To recline: Pull the recline lever (typically on the left side, similar to the height lever) and lean back to your desired angle. Release the lever to lock the position. The chair can recline up to 155 degrees, suitable for relaxing, watching, or working (Figure 4).
- To extend footrest: Pull the footrest out from under the seat. It can be adjusted to provide leg support.

5.3 Vibrating Massage and Lumbar Heating
The chair is equipped with 6 vibrating massage points and a lumbar heating function, controlled by a wired remote.
- Power On/Off: Plug the power adapter into a wall outlet and connect it to the chair's power cable. Use the power button on the remote control to turn the massage and heating functions on or off.
- Massage Modes: The remote control offers five different massage modes (M1-M5). Press the corresponding button to select your preferred mode.
- Massage Intensity: Adjust the intensity of the vibration using the remote control buttons.
- Heating Function: Activate the heating function for the lumbar area via the remote control.
- Storage: When not in use, the wired remote can be stored in the back pocket of the chair.


6. Maintenance and Care
To ensure the longevity and cleanliness of your Vinsetto Massage Office Chair:
- Cleaning: For general cleaning, wipe the fabric with a soft, damp cloth. For tougher stains, use a mild fabric cleaner and follow the product instructions. Do not use harsh chemicals or abrasive cleaners.
- Dusting: Regularly dust the chair with a soft, dry cloth.
- Casters: Periodically check the casters for hair or debris and clean them to ensure smooth movement.
- Hardware: Occasionally check all screws and bolts to ensure they are tight. Retighten if necessary.
- Electrical Components: Keep the remote control and power adapter dry. Unplug the chair before cleaning or if it will not be used for an extended period.
7. Troubleshooting
If you encounter any issues with your chair, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift cylinder faulty or lever mechanism stuck. | Ensure the lever is fully engaged. If not, the gas lift may need replacement. |
| Massage function not working | Power adapter unplugged, remote control faulty, or internal wiring issue. | Check if the power adapter is securely plugged into the wall and the chair. Ensure the remote control batteries (if applicable) are working. |
| Chair wobbles or is unstable | Loose screws or uneven floor. | Check and tighten all assembly screws. Ensure the chair is on a flat surface. |
| Casters not rolling smoothly | Debris caught in casters. | Remove any hair or debris from the caster wheels. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | 921-658V90GY |
| Color | Gray |
| Material | Linen (polyester), Foam, Multi-layer board, Steel |
| Overall Dimensions (LxWxH) | 66 x 76 x 112-120 cm |
| Reclining Dimensions (LxWxH) | 66 x 122 x 83-91 cm |
| Seat Dimensions (LxW) | 54 x 51 cm |
| Seat Height | 47-55 cm |
| Armrest Height (from seat) | 22 cm |
| Backrest Dimensions (WxH) | 52 x 69 cm |
| Seat & Backrest Thickness | 12 cm |
| Power Cable Length | 1.2 m |
| Maximum Load Capacity | 120 kg |
| Input Voltage | 100-240V, 50/60Hz |
| Output Voltage/Power | 12V/1A, 12W |
| Package Weight | 22.0 kg |
| Package Dimensions (LxWxH) | 75 x 38 x 55 cm |

9. User Tips
No specific user tips were available from reviews or Q&A for this product.
10. Warranty and Support
For warranty information, technical support, or replacement parts, please contact the retailer or manufacturer directly. Keep your purchase receipt as proof of purchase.





