Sunnytech&nbsp;Mini Portable Misting Fan Cooling&nbsp;Humidifier Water Mist System Fan Desktop Rechargeable, 4 Working mode (Blue) Stirlingtechonline is exclusive distributor and the owner of the brand "SunnyTech"----Please be sure you receive an authentic SunnyTech stirling with SunnyTech logo and only sold by Stirlingtechonline to ensure 1-year 100% Satisfaction Guarantee. it's a already finish Four working mode: First touch: Fan+Misting/Second touch: Only Misting/Third touch: Breezy wind/Forth touch: Strong wind.Two buttons to Operate: 1) "On/ Off" button to turn on and off the device, 2) "Power" Button is to choose the circulation modes you like. Fashion design. Functional personal fan, rechargeable USB mini cooling fan and beauty humidifier 2 in 1. Its powered by rechargeable battery with a micro USB port, Light-weight and handle design, convenient to carry anywhere and anytime. Silica gel cover for water injection port: more compact and anti-spill water; Sink: larger capacity. There maybe few water residuesin the water tank, it's normal because we test everyone with water before shipment. Please use pure water to protect the humidifier, avoiding using essential oil or other chemical corrosive substances This small fan comes with the overcharge circuit protection to keepbattery safety and durable. Recharge the mini fan if you find the wind force and misty effect become weak and stop working. It can be charged while using