This fan's cooling plate uses semiconductor cooling technology (also known as the Peltier effect), where one side absorbs heat while the other releases heat when electric current passes through special semiconductor materials, creating a noticeable cooling effect on the cooling plate surface. The cooling plate can quickly drop to approximately 10-15°C below ambient temperature, and when in contact with skin, it rapidly draws heat away from the body surface, creating an immediate cooling sensation. This cooling method is highly effective, especially in humid environments where the cooling effect is even more noticeable, something that ordinary fans cannot match.

The turbine design is a special fan structure that mimics the principles of aviation turbine engines, compressing and accelerating incoming air through specially designed air ducts and blade shapes before discharging it forward. Compared to regular fans, the turbine design offers these advantages: 1) Stronger, more focused airflow with greater range; 2) Greater air volume production in the same size; 3) Higher air pressure, effectively penetrating clothing to draw away heat; 4) Relatively lower noise. This design is particularly suitable for scenarios requiring powerful air delivery, providing a more noticeable cooling experience.

This product is equipped with a 4000mAh high-capacity battery with the following runtime in different usage modes: When using only the fan function, it can operate for approximately 3.5 hours (high speed) to 13.5 hours (low speed); When using both fan and cooling plate functions simultaneously, it can operate for approximately 1.5 hours (high speed) to 2.5 hours (low speed). To extend usage time, you can: 1) Select lower fan speed settings; 2) Use the cooling plate function intermittently, only activating when needed; 3) Turn off the cooling plate function when strong cooling is not required; 4) Avoid extended use in extremely high-temperature environments, as this increases power consumption. Additionally, carrying a power bank allows you to charge the device when necessary, extending usage time.

Yes, this is a completely normal physical phenomenon. When the cooling plate's temperature falls below the dew point of the surrounding environment, water vapor in the air condenses into droplets upon contact with the cold surface. This is the same principle that causes summer iced drink cups to "sweat" on the outside. This condensation phenomenon becomes more pronounced when used in high-temperature, high-humidity environments. After use, it's recommended to gently wipe the water droplets from the cooling plate surface with a soft, dry cloth to maintain dryness, avoiding the effects of prolonged moisture on the device, while also maintaining optimal cooling effects for the next use.

This product offers 5 speed settings, from the lowest Level 1 to the highest Level 5, with specific differences as follows: Level 1 (lowest): Gentle breeze, minimal noise, most power-efficient, suitable for quiet environments and during sleep, providing the longest battery duration; Levels 2 and 3: Medium airflow, balancing air volume and power consumption, suitable for daily office use and general environments; Level 4: Stronger airflow, effectively dissipating sweat, suitable for post-outdoor activities or warmer environments; Level 5 (highest): Maximum airflow, providing strong, focused air current for rapid cooling, but consumes power fastest and produces more noise. Users can flexibly select the most suitable speed level based on environmental temperature, personal preference, and desired usage duration.