【Activate the humidification function】 The high-speed rotating fan combined with water mist can immediately generate cool air, easily dispelling 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. Just press a button to switch between different wind speeds and hold. 【Super long working time】 The portable fan with built-in 4000mAh large capacity rechargeable battery, you can charge your Mini portable 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 portable fan batteries last 20% longer than most portable fans on