【Turn on the humidification function】 The high-speed rotating fan combined with water mist can immediately generate cold air, making it easy for you to drive away the heat. (Note: After the first addition of water, you need to wait 3 minutes for normal use.) 【QUIET OPERATION】 Thanks to its low noise level, the fan is the ideal ally for your office, living room or bedroom. 【Powerful Portable Fan】 The mini portable fan has 3 adjustable wind speeds. Simply press a button to switch between different wind speeds and hold. 【Super Long Working Time】 Handheld fan with built-in 4000mAh large capacity rechargeable battery, you can charge your Mini Handheld Fan at any time with any USB device. Depending on the size of the air volume, it can be used continuously for 8 to 15 hours. Our handheld fan batteries last 20% longer than most handheld fans on 【COMPACT AND PORTABLE】 The handheld fan weighs only 106 grams and measures 18.3x7x4 centimeters. Its lightweight design allows you to easily carry it