1. Introduction
Thank you for choosing the Sejoy Deep Tissue Percussion Massage Gun. This device is designed to provide targeted muscle relief, aid in recovery, and alleviate muscle tension. Please read this manual thoroughly before use to ensure safe and effective operation. Keep this manual for future reference.

Image 1: Sejoy Deep Tissue Percussion Massage Gun, showcasing its compact design.
2. Safety Information
To reduce the risk of electric shock, fire, and injury, this product must be used in accordance with the following instructions:
- This device is for adult use only.
- Use only on dry, clean body surfaces over clothing.
- Do not use on head, bony areas, open wounds, or genital areas.
- Consult a doctor before use if you have any medical conditions, are pregnant, or have a pacemaker.
- Do not immerse the device in water.
- Keep away from children.
- Do not operate continuously for more than 15 minutes. Allow 30 minutes of rest before re-using.
- Use only the provided charging cable.
3. Package Contents
Verify that all items are present in your package:
- Sejoy Deep Tissue Percussion Massage Gun
- 6 Interchangeable Massage Heads
- USB Type-C Charging Cable
- Instruction Manual

Image 2: The Sejoy Massage Gun with its six interchangeable massage heads and charging cable.
4. Product Overview
The Sejoy Deep Tissue Percussion Massage Gun features a compact design with an intuitive touch LED screen for easy control.
Components:
- Massage Head Attachment Port
- Ergonomic Non-slip Handle
- Touch LED Display
- USB Type-C Charging Port

Image 3: Close-up of the massage gun's LED touch display, showing power and speed indicators, and control buttons.
Controls:
- Power Button: Long press to turn on/off.
- '+' Button: Increase speed level.
- '-' Button: Decrease speed level.
- LED Display: Shows current speed level and remaining battery capacity.
5. Setup
Initial Charging:
- Before first use, fully charge the massage gun.
- Connect the USB Type-C charging cable to the charging port on the device.
- Plug the other end of the cable into a compatible USB power adapter (not included).
- The LED display will indicate charging status. A full charge typically takes 2-3 hours.

Image 4: The massage gun connected to a USB-C charging cable, illustrating the charging process.
Attaching Massage Heads:
- Ensure the device is turned off before attaching or removing massage heads.
- Gently push the desired massage head into the attachment port until it is securely in place.
- To remove, gently pull the massage head straight out.
6. Operating Instructions
Power On/Off:
- To Turn On: Long press the power button on the LED display. The display will light up, showing the current speed level and battery.
- To Turn Off: Long press the power button again. The display will turn off.
- The device has an automatic shut-off feature after 15 minutes of continuous operation to prevent overheating and ensure safety.
Adjusting Speed Levels:
The massage gun offers 10 speed levels (1800-2800 RPM) to customize your massage experience.
- After turning on the device, press the '+' button to increase the speed level.
- Press the '-' button to decrease the speed level.
- The current speed level will be displayed on the LED screen.
Usage Guidelines:
- Start with a low speed and gradually increase as desired.
- Gently glide the massage gun over the target muscle area. Do not apply excessive pressure.
- Move the device slowly, allowing it to work on the muscle.
- Avoid prolonged use on a single spot. Move the device constantly.
- Recommended usage time per muscle group is 30-60 seconds.

Image 5: A person demonstrating the use of the Sejoy Massage Gun on their shoulder.
7. Massage Head Guide
The Sejoy Massage Gun includes 6 specialized massage heads, each designed for different muscle groups and massage needs.

Image 6: An illustration of the six distinct massage heads and their recommended uses.
- Spheroidal Head: Suitable for large muscle groups like arms, back, buttocks, and thighs.
- Bullet Head: Ideal for deep tissue massage, trigger points, and small muscle areas such as feet and joints.
- U-shaped Head: Designed for the neck, spine, and Achilles tendon.
- Flat Head: Versatile for all muscle parts, providing a general relaxing massage.
- T-shaped Head: Best for relaxing large muscle parts, buttocks, and waist.
- A-shaped Head: Suitable for deep tissue massage, targeting meridian joints and foot base.
8. Charging
The massage gun is powered by a built-in 1200mAh rechargeable battery.
- When the battery is low, the LED display will show a low battery indicator.
- Connect the USB Type-C cable to the device and a USB power source.
- Charging time is approximately 2-3 hours for a full charge.
- Do not use the device while it is charging.
9. Maintenance
Cleaning:
- Turn off the device and unplug it before cleaning.
- Wipe the device with a slightly damp cloth. Do not use abrasive cleaners or immerse in water.
- Clean massage heads with a mild soap and water solution, then rinse and air dry completely before reattaching.
Storage:
- Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Keep out of reach of children.
10. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery; Device not charged | Charge the device fully. |
| Device stops during use | 15-minute auto-off activated; Low battery | Restart the device after a short break; Charge the device. |
| Weak percussion | Low battery; Incorrect speed setting | Charge the device; Increase the speed level. |
| Massage head falls off | Improper attachment | Ensure the massage head is pushed firmly into the port. |
11. Specifications
| Feature | Detail |
|---|---|
| Brand | Sejoy |
| Model | Deep Tissue Percussion Massage Gun |
| Power Source | Battery Operated |
| Battery Capacity | 1200mAh |
| Charging Time | 2-3 Hours |
| Speed Levels | 10 (1800-2800 RPM) |
| Amplitude | 12mm |
| Noise Level | <40dB |
| Auto-off Timer | 15 minutes |
| Material | PVC Plastic |
| Color | Black |
| Dimensions (L x W x H) | 14.5 x 14.2 x 5.8 cm |
| Weight | Approx. 0.6 kg (1.3 lbs) |

Image 7: An internal view highlighting the ultra-quiet design of the Sejoy Massage Gun, indicating low noise operation.
12. Warranty and Support
Sejoy products are manufactured to the highest quality standards. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Sejoy website. Please retain your proof of purchase for warranty claims.





