4400MAH BATTERY: The hand held fan has two 2200mAh built-in rechargeable batteries, thus can cable-freely work from 6-15 hours, fully charges in 4 hours, a big save of charging time and longer working hours3 ADJUSTABLE SPEEDSandQUIET: The battery powered handheld fan has 3 different wind speeds. Press the power button repeately to choose the appropriate fan speed. The high quality motor inside the mini fan makes strong power but low sound. This three-speed design personal fan provides you more choices in different temperaturesTABLEandPORTABLE FAN: The small size of the handle fan enables you to either hold it in hand or let the fan stand on solid surface like desk. The fan has anti-slip bottom to make it more stable while standing. Making this multifunctional fan ideal for both outdoor and indoor useMINIandLIGHT WEIGHT: This little fan weighted only 290g, size: 20x 10.5x 4.5cm, a perfect summer cooling fan. With its palm-size it can easily fits your handbag or backpack. Perfect for outdoor activities and travel, or just place it on the desktop. It is also a best gift for family, friend, colleague, teacher.CONVENIENT CHARGING: The desk fan is compatible with all USB output device and comes with a standard USB charging cable, it can both work with or recharge by 5V output adapter, USB charger, laptop, computer, power bank and other USB-enabled devices. The electric fan is made of ABS material, strong and durable to use