Humidifier and Desk Fan Our mini fans is a 3 in 1 combination of fan,humidifier and night light. Adopt ultrasonic spray technology, it can remove fine particles, cool and humidify the air so you can enjoy a cool summer. The night light mode provides you the best colourful light atmosphere. 300ML Water Tank Equipped with a large 300 ml water tank, the humidifier can work 6-8 hours in continuous or intermittent mode . In summer, to make the emitted mist cooler, you can also add a little ice cube to the water.Keep your skin moist and enjoy fresh cold air. 3 Fan SpeedThe quiet fan has 3 adjustable 3 speed levels (low/medium/high) , you can choose the the wind speed that you like to feel comfortable in the hot summer. Long Working Time & USB Charging This room fan has a built-in 2000 mAh battery. This fan can work for 3-8 hours after fully charging (depending on different speeds).The bedroom fan can be charged by your power bank, PC, laptop, any USB outlet, etc. The Best Cool Summer GiftThis silent fans for sleeping is small, exquisite and stylish. It is the ideal gift for your family and friends in summer. Perfect for bedroom, office, school, home, dorm, room etc.