FORTHiQ FQ-850

Download PDFFree PDF. The Save button below keeps a bookmark and private notes in your account.

FORTHiQ RED+ Knee Massager Red Light & Vibration Therapy Instruction Manual

Model: FQ-850

Introduction

The FORTHiQ RED+ Knee Massager is designed to provide advanced care for knees, elbows, shoulders, and other joints through red light and vibration therapy. This device features 52 dual-wavelength LEDs (660nm and 850nm), 4 red light frequencies, and 5 adjustable intensity levels, allowing for a personalized experience. It also includes a memory function to recall your last settings and an integrated NFC chip for instant access to guides and resources.

Safety Warnings

  • Do not use on injured or inflamed areas.
  • Avoid direct eye contact with the light.
  • Ensure the device does not overheat during use.
  • Adhere to all electrical safety guidelines.
  • This device is not a medical tool and should not be used to treat severe injuries or medical conditions without professional advice.

Product Features

  • Dual-Wavelength Red Light Therapy: Equipped with 52 LEDs emitting both 660nm (red light) and 850nm (near-infrared light) for broad and deep tissue exposure.
  • Multiple Red Light Frequencies: Choose from Constant, 2 Hz, 100 Hz, and 3000 Hz for targeted care.
  • Adjustable Light Intensity: Five levels of red light intensity to customize your session.
  • Vibration Therapy: Provides soothing vibration with adjustable levels.
  • Memory Function: Automatically recalls your last used settings.
  • Integrated NFC Chip: Tap your phone for instant access to user guides and resources.
  • Timer Settings: Sessions can be set for 10, 20, or 30 minutes.
  • Wireless Operation: Battery-powered for convenience and portability.
Diagram illustrating dual-wavelength red light therapy penetrating skin and muscle tissue.
Figure 1: Dual-Wavelength Red Light Therapy. This diagram shows how 660nm red light and 850nm near-infrared light penetrate different layers of tissue, including the epidermis, dermis, and muscle, to support tissue recovery.
Diagram showing five heat levels for the FORTHiQ RED+ Knee Massager, ranging from light warmth to maximum comfort.
Figure 2: Five Heat Levels. The device offers five distinct heat levels (L1 to L5) designed to gently warm muscles, ranging from light warmth for relaxation to maximum comfort for sore knees.

Setup

  1. Charge the Device: Before first use, fully charge the FORTHiQ RED+ Knee Massager using the provided USB cable. A full charge typically takes approximately 2 hours.
  2. Positioning: Place the massager on the desired joint (knee, elbow, shoulder). Use the adjustable straps to secure it comfortably but firmly. Ensure the LED panel is directly over the area you wish to treat.
  3. NFC Guide Access: For detailed setup instructions and additional resources, tap your NFC-enabled smartphone to the integrated NFC chip on the device. This will provide instant access to the user guide and product registration.
A person walking with the FORTHiQ RED+ Knee Massager secured to their knee, demonstrating mobility during use.
Figure 3: Device Application. The image shows the FORTHiQ RED+ Knee Massager applied to a knee, highlighting its adjustable fit and allowing for free movement during therapy.

Operating Instructions

  1. Power On: Press and hold the power button on the control panel to turn on the device.
  2. Select Red Light Intensity: Use the dedicated button to cycle through the 5 red light intensity levels (L1-L5).
  3. Choose Red Light Frequency: Select from Constant, 2 Hz, 100 Hz, or 3000 Hz pulsing modes using the frequency button.
  4. Adjust Vibration: Activate and adjust the vibration intensity through the vibration control button.
  5. Set Timer: Choose a session duration of 10, 20, or 30 minutes using the timer button. The device will automatically shut off after the selected time.
  6. Memory Function: The device will remember your last settings for red light intensity, frequency, vibration, and timer for convenience in subsequent uses.
  7. Power Off: Press and hold the power button to turn off the device.
Close-up of the FORTHiQ RED+ Knee Massager control panel, showing buttons for memory, red light intensity, red light mode, NFC, vibration, and timer settings.
Figure 4: Control Panel Overview. This image details the control panel, indicating the memory function, 5 red light intensity levels, 4 red light pulsing modes, NFC tap area, 3 vibration levels, and timer options (10, 20, or 30 minutes).
Detailed view of the FORTHiQ RED+ control panel with labels for each function: memory, red light intensity, red light mode, NFC, vibration, and timer.
Figure 5: Detailed Control Panel. A closer look at the control panel, highlighting the specific buttons and display for adjusting red light intensity (L5 shown), red light mode (M3 shown), vibration (03 shown), and timer (30 min shown).

Maintenance

  • Cleaning: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or immerse the device in water.
  • Storage: Store the massager in a cool, dry place away from direct sunlight when not in use.
  • Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not used for extended periods.

Troubleshooting

ProblemPossible CauseSolution
Device does not turn on.Low battery or device not charged.Charge the device fully using the provided USB cable. Ensure the charging cable is securely connected.
Red lights are not visible or dim.Low battery or intensity setting is too low.Charge the device. Increase the red light intensity level using the control panel. Note that 850nm near-infrared light is not visible to the naked eye.
Vibration is weak or absent.Vibration setting is too low or disabled.Increase the vibration intensity level using the control panel.
Device overheats.Prolonged use or improper ventilation.Discontinue use immediately. Allow the device to cool down. Ensure proper air circulation around the device during use.

Specifications

Model NumberFQ-850
BrandFORTHiQ
Dimensions (L x W x H)16 x 10 x 7 cm
Weight226.8 grams
LED Count52 LEDs
Wavelengths660nm (Red Light) & 850nm (Near-Infrared Light)
Red Light FrequenciesConstant, 2 Hz, 100 Hz, 3000 Hz
Red Light Intensity Levels5 levels
Vibration Levels3 levels
Power SourceBattery Powered (1 Lithium-ion battery included)
Charging TimeApproximately 2 hours
Timer Settings10, 20, 30 minutes
MaterialElectronics, Neoprene

Note: Some specifications are inferred from product images and descriptions.

Warranty and Support

The FORTHiQ RED+ Knee Massager includes an integrated NFC chip. Tapping your NFC-enabled smartphone to this chip provides instant access to product registration and additional support resources. Please refer to the digital guide accessed via NFC for specific warranty details and customer support contact information.

© 2026 FORTHiQ. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.