Adjustable 3 Mode and 4 Wind Speed: Room Air Conditioners have 3 modes (Natural Wind or Low Cool Mist or High Cool Mist) and 4 wind speeds (Low or Natural or Mid or High) with 120Up and down adjustable wind direction. The combination of multiple modes and wind speeds gives you more choices. It is recommended to add ice cubes for a better experience, USB charging port can be powered with a power bank, laptop, adapters, mobile power sources, computers, and vehicle chargers, no adapter included. Suitable for 5V 1.5A USB adapters. 2-8H Timer and 7 Color Night Light: Evaporative Air Cooler has 4 kinds of intelligent timing modes (2H or 4H or 6H or 8H), which Allows you to enjoy a deep sleep or a nap without the headaches and colds caused by prolonged cool breezes. 7-colour night light automatically changes, cooling fans for rooms or bedroom, create a comfortable and relaxing sleeping environment(Light can be turned off) 700ML Large Water TankPersonal air conditioner with a 700ml sealed water tank, this air cooling fan can work 6-8 hours when filled up and avoids frequent addition of water. It will start protection and change to the natural wind when the water runs out, so you don't worry about it when you fall asleep. The water level perspective window allows you to view and control the water level at any time. The design of the water tank on the top can increase the convenience of adding water and avoid leakage. Efficient Cooling and Atomization: Portable air conditioners are equipped with a high-performance motor and a unique air-duct,2 mist humidification holes, which are able to reduce the surrounding temperature up to 45-50 and within 2 seconds provide you with a powerful, cool, refreshing airflow rather than to be caught off by a heatwave. Moreover, you can also add cold water or ice cubes on top for a better cold breeze. The compact and handheld design is perfect for home, kitchen, bedrooms, desks, offices, outdoors, and camping. Quiet and Comfortable: This air cooling fan can operate at low noise (less than 30dB), Even at the maximum wind speed, the noise volume is less than 55dB and will not disturb your life, working and sleep, bringing you the most comfortable experience. It is your best choice when you want to cool down in the office, room, home and exercise.