AMACOOL HF340
AMACOOL Neck Fan User Manual
Model: HF340 | Brand: AMACOOL
1. Introduction
Thank you for choosing the AMACOOL Neck Fan HF340. This innovative, hands-free wearable personal fan is designed to provide optimal cooling and comfort in various environments, from home and office to outdoor activities and travel. Its lightweight, flexible design and powerful airflow make it an essential companion for anyone seeking relief from heat and humidity. This manual provides detailed instructions for safe and effective use, maintenance, and troubleshooting.
2. Safety Information
Please read all safety instructions carefully before using the device. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Do not immerse the fan in water or other liquids.
- Keep out of reach of children and pets.
- Do not insert fingers or foreign objects into the fan blades or vents.
- Avoid prolonged exposure to direct sunlight or high temperatures.
- Use only the provided charging cable or a certified USB-C cable for charging.
- Do not disassemble, repair, or modify the device. Contact customer support if service is required.
- Ensure hair, clothing, or other loose items do not get caught in the fan blades during operation.
3. Product Overview & Features
The AMACOOL Neck Fan HF340 is engineered for maximum comfort and cooling efficiency. Its key features include:
- Adjustable Speeds: Features multiple wind speeds, from a gentle breeze for indoor use to powerful airflow for outdoor activities.
- Long-Lasting Battery: Equipped with a built-in rechargeable battery, providing up to 6 hours of operation on Speed 1.
- Hands-Free & Wearable Design: Designed to be worn comfortably around the neck, freeing your hands for other tasks.
- Long Hair Friendly: Specially designed fan blades and covers prevent hair from getting caught, ensuring safe use for users with long hair.
- Mini Size, Big Performance: Lightweight (only 6.5oz / 0.2 kg) with foldable and flexible arms, allowing for 360-degree angle adjustment and easy portability.

Figure 3.1: The AMACOOL Neck Fan HF340 in black, showcasing its wearable design.

Figure 3.2: The fan provides powerful and quiet cooling.

Figure 3.3: Product dimensions and control layout of the AMACOOL Neck Fan.

Figure 3.4: The flexible arms allow for 360-degree adjustment of the fan direction.

Figure 3.5: Lightweight and foldable design for easy portability.

Figure 3.6: Unique fan blade design prevents hair entanglement.
4. Setup
4.1 Initial Charging
Before first use, fully charge your AMACOOL Neck Fan. The fan comes with a built-in rechargeable battery.
- Locate the USB-C charging port on the main body of the neck fan (refer to Figure 3.3).
- Connect the provided USB-C cable to the charging port.
- Plug the other end of the USB-C cable into any USB power source, such as a laptop, computer, AC adapter, or power bank.
- The indicator lights on the fan's body will illuminate to show charging progress. All lights will be solid when fully charged.

Figure 4.1: Charging the AMACOOL Neck Fan using a USB-C cable.
4.2 Wearing the Fan
The flexible design allows for comfortable and customizable wear.
- Gently bend the flexible arms to open the neckband.
- Place the fan around your neck so that the main body rests comfortably on the back of your neck.
- Adjust the flexible arms and fan heads to direct airflow precisely where you need it, such as towards your face or chest.
5. Operating Instructions
The AMACOOL Neck Fan features simple one-button control for power and speed adjustment.
- Power On/Off: Long press the power button (refer to Figure 3.3) for approximately 2-3 seconds to turn the fan on or off.
- Adjust Speed: Once the fan is on, short press the power button to cycle through the available speed settings. The fan has 3 speeds, typically indicated by the number of illuminated indicator lights.
Note: The fan will remember the last speed setting used when turned off and on again.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your neck fan.
- Cleaning: Use a soft, dry cloth to wipe down the fan's exterior. Do not use abrasive cleaners or immerse the fan in water. For dust accumulation on the fan blades, use a soft brush or compressed air.
- Storage: When not in use, store the fan in a cool, dry place away from direct sunlight and extreme temperatures. The foldable design allows for compact storage.
- Battery Care: To maximize battery life, avoid fully discharging the battery frequently. Recharge the fan when the battery indicator lights are low. If storing for an extended period, charge the battery to about 50% every few months.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not turn on. | Battery is depleted. | Charge the fan fully using the provided USB-C cable. |
| Weak airflow. | Low battery or fan speed setting is too low. | Recharge the fan. Increase the fan speed by short pressing the power button. |
| Fan makes unusual noise. | Obstruction in fan blades or internal issue. | Turn off the fan immediately. Check for any obstructions and carefully remove them. If the noise persists, discontinue use and contact customer support. |
| Fan does not charge. | Faulty cable, adapter, or charging port. | Try a different USB-C cable and/or power adapter. Ensure the charging port is clean and free of debris. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | AMACOOL |
| Model Name | HF340 |
| Color | Black |
| Electric Fan Design | Wearable Fan |
| Power Source | Battery Powered (1 Lithium Polymer battery included) |
| Product Dimensions | 1.26"D x 5.11"W x 7.95"H |
| Item Weight | 7 ounces (0.2 Kilograms) |
| Special Feature | Adjustable Tilt, Foldable |
| Number of Blades | 3 |
| Number of Power Levels | 3 |
| Control Method | Touch |
| Indoor/Outdoor Usage | Outdoor, Indoor |
| Manufacturer | Shenzhenshi luansheng dianzikeji youxiangongsi |
9. Warranty & Support
AMACOOL is committed to providing high-quality products and excellent customer service. While specific warranty details are not provided in this manual, please refer to your product packaging or the official AMACOOL website for the most up-to-date warranty information.
For any questions, technical support, or warranty claims, please contact AMACOOL customer service through the retailer's platform or the contact information provided on the product packaging.
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