Fitness Apparatus Store S2

Fitness Apparatus Store Booster S2 Massage Gun User Manual

Model: S2

Important Safety Instructions

Please read all instructions carefully before using the Booster S2 Massage Gun. Retain this manual for future reference.

  • Do not immerse the device in water. Keep away from liquids.
  • Do not operate continuously for more than one hour. Allow 30 minutes of rest before re-using.
  • For adult use only. Consult a physician before use if you have any medical conditions, are pregnant, or have a pacemaker.
  • Do not use on injured skin, open wounds, or areas with poor circulation.
  • Keep fingers, hair, or any other body part away from the shaft and back of the applicator to prevent pinching.
  • Use only the provided charger.
  • Do not modify or attempt to repair the device yourself.

Product Overview

The Booster S2 Massage Gun is a lightweight, handheld percussion massager designed for deep tissue muscle relaxation and pain relief. It features a double-layer modular structure for reduced vibration and a simple one-click control system.

Components and Controls

Diagram showing Booster S2 Massage Gun components: Level Indicator, Gear Switch, Power Indicator, Detachable Massage Head, Charging Interface.
Figure 1: Overview of the Booster S2 Massage Gun components, including the control panel, massage head, and charging port.
  • Level Indicator: Displays the current speed setting.
  • Gear Switch: Button for adjusting speed levels.
  • Power Indicator: Shows battery status.
  • Detachable Massage Head: Interchangeable heads for various massage needs.
  • Charging Interface: Port for connecting the AC charger.

Massage Heads

Image showing six different massage heads: Round head, Spinal head, Pneumatic head, Flat head, Metal head A, Metal head B.
Figure 2: The six standard massage heads included with the Booster S2 Massage Gun, each designed for specific muscle groups or massage types.
  • Round Head: General full-body muscle massage.
  • Spinal Head: Designed for the spine and Achilles tendon.
  • Pneumatic Head: Suitable for sensitive areas and relaxation.
  • Flat Head: Ideal for large muscle groups and overall relaxation.
  • Metal Head A: For deep tissue and trigger point massage.
  • Metal Head B: For deep tissue and trigger point massage.

Setup

Charging the Device

Before first use, fully charge the Booster S2 Massage Gun. The device is equipped with a 2500mAh lithium battery, providing extended use on a single charge.

  1. Connect the provided AC charger to the charging interface on the device.
  2. Plug the charger into a standard wall outlet (100-240V~50/60Hz).
  3. The power indicator will show charging status. A full charge typically takes 2-3 hours.
  4. Once fully charged, disconnect the charger.
Close-up image of the Booster S2 Massage Gun's internal battery compartment, labeled 'Battery cooling protection board'.
Figure 3: Internal view highlighting the battery and its cooling protection board, ensuring safe and efficient charging.

Attaching Massage Heads

Ensure the device is powered off before attaching or removing any massage head.

  1. Select the desired massage head from the six available options.
  2. Align the base of the massage head with the opening on the front of the massage gun.
  3. Gently push the head firmly into the opening until it is securely seated. Do not twist.
  4. To remove, firmly pull the massage head straight out.

Operating Instructions

The Booster S2 features a simple one-click control for ease of use.

Close-up of the Booster S2 Massage Gun's control panel with indicator lights.
Figure 4: The minimalist control panel, showing the gear switch and level indicators.

Power On/Off

  • To Power On: Long press the gear switch button for approximately 2 seconds. The device will start at the lowest speed setting.
  • To Power Off: Long press the gear switch button for approximately 2 seconds.

Adjusting Speed Levels

The Booster S2 has 5 adjustable speed gears.

  • While the device is powered on, short press the gear switch button to cycle through the 5 speed levels.
  • The level indicator lights will illuminate to show the current speed setting.
  • Speed Levels:
    • 1st Gear: 900 r/min
    • 2nd Gear: 1400 r/min
    • 3rd Gear: 1800 r/min
    • 4th Gear: 2200 r/min
    • 5th Gear: 2600 r/min

Usage Recommendations

  • Apply the massage gun to the desired muscle area. Do not apply excessive pressure.
  • Move the device slowly over the muscle, allowing the percussion to work.
  • Avoid using on bony areas or directly on joints.
  • Recommended usage is 10 minutes per day for mid-range settings.

Maintenance

Cleaning

  • Ensure the device is powered off and unplugged before cleaning.
  • Wipe the surface of the massage gun with a slightly damp cloth.
  • Do not use abrasive cleaners, solvents, or harsh chemicals.
  • Dry thoroughly with a soft cloth.
  • The massage heads can be wiped clean with a damp cloth and mild soap, then rinsed and air-dried.

Storage

  • Store the massage gun and its accessories in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Keep out of reach of children.

Troubleshooting

Problem Possible Cause Solution
Device does not turn on. Low battery or not charged. Charge the device fully using the provided AC charger.
Device stops during use. Overuse protection activated or low battery. Allow the device to cool down for 30 minutes. Check battery level and recharge if necessary.
Massage head is loose. Head not properly attached. Ensure the device is off, then firmly push the massage head into place.
Unusual noise or vibration. Foreign object or internal issue. Power off the device immediately. Do not attempt to repair. Contact customer support.

Specifications

Feature Detail
Model S2
Rated Input (AC Charger) 100-240V~50/60Hz
Rated Output (AC Charger) 16.8V
Battery Type Li-ion
Battery Capacity 2500mAh
Battery Rated Voltage 16.8V
Working Hour 3-8 hours
Charging Time 2-3 hours
No-load Speed 900-2600 r/min
Frequency (Gear 1-5) 900, 1400, 1800, 2200, 2600 r/min
Stroke 8mm
Weight 650g (1.4 lbs)
Product Dimensions (L x W x H) 8.5 x 2.4 x 5.7 inches
Power Source AC
Special Features Rechargeable, Lightweight, Quiet Operation

Warranty and Support

One-Year Limited Warranty

The Fitness Apparatus Store Booster S2 Massage Gun comes with a one-year free replacement warranty for product quality problems. This warranty covers manufacturing defects and malfunctions under normal use from the date of purchase.

The warranty does not cover damage caused by misuse, accident, unauthorized modification, or failure to follow the instructions in this manual.

Customer Support

For warranty claims, technical assistance, or any questions regarding your Booster S2 Massage Gun, please contact the Fitness Apparatus Store customer support. Refer to your purchase documentation for specific contact details or visit the official product page on Amazon.com.

Online Support: Amazon Product Page

© 2026 Fitness Apparatus Store. All rights reserved.

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