Hayaku Dual-Purpose Power Bank and Ice-Cool Portable Fan | Built-in 40CM Retractable Type-C Charging Cable | Semiconductor Instant Cooling by 10°C | 21 Hours Ultra-Long Battery Life | 10,000 RPM Silent Powerful Airflow

Product Introduction

The Hayaku Dual-Purpose Power Bank Cooling Portable Fan combines a "fan" and a "power bank" into one design, featuring a built-in 40CM retractable Type-C charging cable, so you don't need to carry an extra cable when you go out. Equipped with semiconductor cooling technology and powerful airflow, it can instantly lower the body temperature by up to 10°C, making it a lifesaver for outdoor activities and commuting in the hot summer.

Why this fan is worth noting

Most portable fans either lack sufficient power to truly cool you down, or require you to carry extra charging cables, adding to the burden and tangle when you go out. Hayaku's design focuses on integrating "built-in charging cable, semiconductor cooling, 21-hour long battery life, and powerful silent fan" into one device. It also functions as a power bank, providing both portable cooling and emergency charging in one device, making it easy to cope with hot weather whether commuting, exercising, camping, or taking children out.

Product Features

• Built-in 40CM retractable Type-C charging cable: Pull it out to charge, no need to carry extra cables, making your bag lighter.
• Instant cooling with semiconductor technology: Combined with powerful airflow, it can instantly lower body temperature by 10°C, providing faster and more noticeable cooling than regular fans.
• 21-hour ultra-long battery life: Low-speed mode supports a full day of use, so you don't need to charge frequently during long outings.
• Dual-purpose power bank function: The fan itself can reverse charge your phone, solving both cooling and power anxiety with one device.
• Powerful and ultra-quiet design: Strong airflow with low operating noise, suitable for quiet environments such as libraries and offices.
• 360° rotation + keychain design: Can be handheld, hung on a bag, or placed on a desk for various uses, freeing your hands for constant coolness.

Product Specifications

Suitable for these people

• Commuters and students who need lightweight accessories and don't want to carry extra charging cables.
• People who need rapid cooling after exercise or in outdoor sun-exposed environments.
• Parents taking children out and scooter riders who want to free their hands while staying cool.
• Office workers and camping enthusiasts who need stable battery life for all-day use during long outings.
• Sensitive individuals who need sufficient airflow without disturbing others in quiet environments such as libraries and offices.

Frequently Asked Questions

Q: Can this fan really charge my phone?
A: Yes, the Hayaku fan is designed as a 2-in-1 fan and power bank. It has a built-in power bank function and comes with a 40CM retractable Type-C charging cable, allowing you to directly charge your phone or other small devices without needing to carry an extra charging cable.

Q: How is semiconductor cooling different from a regular fan?
A: A regular fan only dissipates body heat through airflow, while semiconductor cooling technology uses an active cooling element combined with strong airflow. This provides a more direct cooling sensation, with official claims of instantly lowering body temperature by 10°C, making it particularly suitable for use after exercise or in outdoor sun-exposed environments.

Q: At what mode is the 21-hour battery life measured?
A: The 21-hour battery life is measured in low-speed mode. If you use strong airflow or the cooling function, the actual usage time will be shorter depending on the fan speed and whether the cooling mode is activated. It is recommended to choose the appropriate speed based on the duration of your outing.

Q: Is it noisy despite its strong airflow?
A: No, this fan features a powerful yet ultra-quiet design. Even with strong airflow, the operating noise remains at a low level, making it suitable for quiet environments such as libraries and offices where noise sensitivity is a concern.

Q: How can I carry or place this fan?
A: The fan features a 360° rotating design and comes with a keychain, allowing you to choose between holding it, hanging it on your bag for cooling on the go, or placing it on a desk for fixed use. It's a versatile device, especially suitable for situations where you need to free your hands, such as carrying children, riding a scooter, or shopping.