1. Introduction
Thank you for choosing the iRest SL C-72 Electric Pulse Neck Massager. This device is designed to provide targeted neck massage for pain and stress relief, utilizing electric pulse technology, heat compress, and various massage modes. Please read this manual thoroughly before use to ensure proper operation and safety.
The iRest SL C-72 features a lightweight, cordless design with advanced ABS+Silica gel material, ensuring a comfortable fit. It offers 7 massage modes and 16 intensity levels, powered by a high-capacity rechargeable battery for extended use.
2. Important Safety Information
- WARNING: This device CANNOT BE USED IF YOU HAVE METAL IMPLANTS OR PACEMAKERS. Consult your doctor before use if you have any medical conditions.
- Do not use the massager while driving or operating heavy machinery.
- Keep out of reach of children.
- Do not use on broken or irritated skin.
- Avoid prolonged use in one area to prevent discomfort.
- If you experience any discomfort, stop using the device immediately.
3. Product Overview
The iRest SL C-72 Neck Massager is designed for comfort and effectiveness, featuring a sleek, ergonomic design that conforms to the neck. It incorporates electric pulse technology and a hot compress function to stimulate sensory nerve fibers and promote blood circulation.

Figure 1: iRest SL C-72 Neck Massager
Key Features:
- Lightweight & Portable: Weighs only 0.3lbs, made from ABS+Silica gel material.
- 7 Massage Modes: Hot Compress, Low Frequency Pulse, Fast Knocking, Acupuncture Flapping, Massage Flapping, Scrapping, Smart Neck Guard.
- 16 Intensity Levels: Adjustable intensity from 1 to 16 to suit individual preferences.
- High-Capacity Battery: Built-in 1800mAh rechargeable lithium-ion battery, providing 240-300 minutes of use on a full charge.
- Fast Charging: Universal Type-C USB interface, fully charges in approximately 2 hours.
- Intelligent Timing Protection: Automatic 10-15 minute shut-off to prevent overuse and overheating.
- Bluetooth Connectivity: For enhanced control and features (if applicable, based on image).
Video 1: Product Features Overview. This video showcases the main features and benefits of the iRest SL C-72 Neck Massager, including its various modes and portability.
4. Setup
- Charge the Device: Before first use, fully charge the massager using the provided Type-C USB cable. The charging indicator will show the charging status.
- Positioning: Place the massager around your neck, ensuring the electrode pads make firm contact with your skin. The flexible design allows for adjustment to various neck sizes.
- Bluetooth Connection (Optional):
- Turn on the massager.
- On your mobile phone, search for Bluetooth devices and select "iGS" to connect.

Figure 2: Device Placement and Bluetooth Connection
5. Operating Instructions
The massager is controlled via buttons located on the device. Specific button functions may vary slightly, but generally include Power, Mode Selection, and Intensity Adjustment.
- Power On/Off: Press and hold the power button for a few seconds to turn the device on or off.
- Mode Selection: Short press the 'M' (Mode) button to cycle through the 7 available massage modes.
- Intensity Adjustment: Use the '+' and '-' buttons to increase or decrease the intensity level (1-16). Start with a low intensity and gradually increase to a comfortable level.
- Hot Compress: This feature is often integrated into certain modes or can be activated separately. Refer to the device's specific button layout for hot compress activation. The device maintains a constant temperature of approximately 107.6°F (42°C).

Figure 3: Constant Temperature and Electric Pulse Function
The device is equipped with a 10-15 minute intelligent timing protection, automatically shutting off after the set duration to prevent overuse.
6. Charging
The iRest SL C-72 is powered by a built-in 1800mAh rechargeable lithium-ion battery.
- Connect the provided Type-C USB cable to the charging port on the massager and to a suitable USB power adapter (not included).
- A full charge takes approximately 2 hours.
- Once fully charged, the device can operate for 240-300 minutes, or approximately 15-18 massage sessions (based on 15-minute sessions).
7. Massage Modes and Intensity Levels
The massager offers 7 distinct massage modes and 16 adjustable intensity levels:
- Hot Compress: Provides soothing heat.
- Low Frequency Pulse: Gentle electrical stimulation.
- Fast Knocking: Rhythmic tapping sensation.
- Acupuncture Flapping: Mimics acupuncture techniques.
- Massage Flapping: General massage with flapping motion.
- Scrapping (Gua Sha): Simulates scraping massage.
- Smart Neck Guard: A combination mode for comprehensive care.
Adjust the intensity using the '+' and '-' buttons to find your preferred comfort level. It is recommended to start at the lowest intensity and gradually increase.

Figure 4: Magic Ring C72 Features
8. Maintenance
- Cleaning: Wipe the device with a soft, damp cloth after each use. Do not use abrasive cleaners or immerse the device in water.
- Storage: Store the massager in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, charge the device regularly, even if not in frequent use.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery; Device not charged | Charge the device fully. |
| No pulse sensation | Electrode pads not making good contact; Intensity too low; Dry skin | Ensure pads are firmly against skin. Increase intensity. Apply a small amount of water or conductive gel to the neck area if skin is dry. |
| Device shuts off unexpectedly | Intelligent timing protection activated; Low battery | This is normal after 10-15 minutes. Recharge the device if battery is low. |
| Discomfort during use | Intensity too high; Improper placement | Reduce intensity. Adjust placement for better comfort. Stop use if discomfort persists. |
10. Specifications
| Feature | Specification |
|---|---|
| Model Name | SL C-72 |
| Product Dimensions | 20 x 10 x 5 cm |
| Item Weight | 400 g |
| Power Source | Battery Powered (Rechargeable) |
| Battery Capacity | 1800mAh Lithium-ion |
| Charging Interface | Type-C USB |
| Material | Metal, Plastic (ABS+Silica gel) |
| Color | White |
| Massage Modes | 7 |
| Intensity Levels | 16 |
| Automatic Shut-off | 10-15 minutes |
| Water Resistance Level | Not Water Resistant |
11. Warranty and Support
The iRest SL C-72 Neck Massager comes with a 1 Year Warranty covering manufacturing defects. Please retain your proof of purchase for warranty claims.
For any issues or support inquiries, please contact iRest customer service. Details can typically be found on the product packaging or the official iRest website.