Sejoy JMQ-Q3
Sejoy Mini Massage Gun Instruction Manual
Model: JMQ-Q3 | Brand: Sejoy
Introduction
The Sejoy Mini Massage Gun is a portable, percussion muscle massager designed for deep tissue relief. Its compact size and powerful motor make it ideal for use at home, in the gym, or outdoors. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your device.
Product Features
- 10 Speed Levels and LCD Touch Screen: Offers 10 different speed levels to meet various muscle group needs. Adjust frequency via the LED touch screen for targeted massage.
- 4 Massage Heads: Includes 4 interchangeable massage heads for comprehensive muscle relaxation.
- Upgraded Powerful Low-Noise Motor: Equipped with motor cushioning, sound insulation board, and noise reduction shell for quiet operation (less than 45dB).
- Long Working Time: Features a 2400mAh high-quality rechargeable lithium battery, providing up to 4 hours of working time.
- Portable & Easy to Use: Weighs only 1.32 lb (0.6kg), making it easy to handle and carry. Simple LED control with independent switch button for speed and vibration adjustment.
Package Contents
Upon opening your Sejoy Mini Massage Gun package, you should find the following items:
- 1 x Sejoy Mini Massage Gun
- 4 x Interchangeable Massage Heads
- 1 x USB Type-C Charging Cable
- 1 x User Manual

Image: Sejoy Mini Massage Gun and its accessories, including the device, four massage heads, and a USB-C cable.
Setup
1. Charging the Device
Before first use, fully charge the Sejoy Mini Massage Gun. The device is equipped with a 2400mAh lithium battery and charges via a universal USB Type-C cable.
- Locate the USB Type-C charging port on the back of the massage gun, near the power button.
- Connect the provided USB Type-C cable to the device.
- Plug the other end of the USB cable into a compatible USB power source (e.g., wall adapter, power bank, laptop).
- The LCD touch screen will display the battery percentage, indicating charging progress. A full charge typically takes 2-3 hours.

Image: The massage gun being charged via its USB-C port, with the battery level displayed on the screen.
2. Attaching Massage Heads
The Sejoy Mini Massage Gun comes with four different massage heads, each designed for specific muscle groups and massage types.
- Ball Head: General use, suitable for large muscle groups like arms, back, hips, thighs, calves.
- U-shaped Head: Ideal for neck, spine, and Achilles tendon.
- Bullet Head: For deep tissue, trigger points, and small muscle areas like feet and joints.
- Flat Head: Suitable for all parts of the body, offering a more general and gentle massage.
To attach a massage head:
- Ensure the device is turned off.
- Gently twist and pull the current head (if any) to remove it.
- Insert the desired massage head into the opening at the front of the gun. Push firmly until it clicks into place.
- To remove, twist and pull the head off.

Image: The four distinct massage heads included with the device, each designed for different massage applications.
Operating Instructions
1. Power On/Off
The device features an intuitive LED touch screen for control.
- To power on: Press and hold the power button on the LCD screen for a few seconds until the display lights up and the device starts.
- To power off: Press and hold the power button again for a few seconds until the display turns off.
- To check battery percentage: Briefly tap the power button when the device is off. The screen will show the current battery level.

Image: Detailed view of the LED touch screen, indicating power and speed controls.
2. Adjusting Speed Levels
The Sejoy Mini Massage Gun offers 10 adjustable speed levels to customize your massage experience.
- Once powered on, the device will start at the lowest speed level.
- To increase the speed: Briefly press the power button. Each press will advance to the next speed level.
- The current speed level (1-10) will be displayed on the LCD screen.
- The device is designed to increase intensity when pressed against the body, providing deeper percussion.

Image: Visual guide to the 10 speed settings and their recommended uses for muscle arousal, fascia relaxation, and lactic acid decomposition.
3. Recommended Usage
Use the massage gun on various muscle groups to alleviate soreness and promote recovery. Avoid using on bones or joints directly.

Image: Example of the massage gun being used on the shoulder for muscle relief.

Image: The massage gun is suitable for use in diverse environments such as the gym, home, office, and during marathons.
Maintenance
- Cleaning: Wipe the device and massage heads with a damp cloth after each use. Do not use abrasive cleaners or immerse the device in water.
- Storage: Store the massage gun in a cool, dry place away from direct sunlight and extreme temperatures. Keep out of reach of children.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery; incorrect power button usage. | Charge the device fully. Press and hold the power button for a few seconds to turn on. |
| Massage head falls off during use. | Head not securely attached. | Ensure the massage head is pushed firmly into place until it clicks. |
| Device stops working unexpectedly. | Overheating; low battery. | Allow the device to cool down. Recharge the battery. |
| Reduced percussion intensity. | Incorrect speed setting; low battery. | Increase the speed level. Charge the device. |
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 8.35 x 7.8 x 1.57 inches |
| Item Weight | 1.32 Pounds (0.6 Kilograms) |
| Model Number | JMQ-Q3 |
| Battery | 1 Lithium Ion battery (2400mAh) |
| Power Source | Battery Powered (USB Type-C Charging) |
| Material | Aluminum |
| Noise Level | <45dB |
| Speed Levels | 10 |
| Massage Heads | 4 |
Safety Information
Please read and understand all safety instructions before using the Sejoy Mini Massage Gun to prevent injury or damage to the device.
- Do not immerse the device in water or use it in wet environments.
- Keep away from heat sources and direct sunlight.
- Do not operate if the device or charging cable is damaged.
- Consult a physician before use if you have any medical conditions, are pregnant, or have a pacemaker.
- Do not use on the head, open wounds, or sensitive areas.
- Keep out of reach of children and pets.
- Only use the provided charging cable or a compatible USB Type-C cable.
- Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Warranty and Support
For warranty information and customer support, please refer to the contact details provided in the original product packaging or visit the official Sejoy website. Keep your purchase receipt for warranty claims.
For additional information or inquiries, you may visit the Sejoy Store on Amazon.