About This 【Premium rechargeable battery cell】 Thanks to 21700 battery, offer more capacity than 18650 battery.Larger capacity provides 7-20 hours of cable-free use.Designed with a non-foldable handle to prevent the handle from breaking.Perfect for home,office,movies,sports,travel,etc. A must-have for your family and friends. 【Safe and One-Button Operation】Made from high quality ABS materials, very safe for both kids and adults. It is easy to operate with only one button, long press the button to turn on/off the fan, and press repeatedly to adjust the wind speed 【3 Speeds,Small size but Powerful】Built-in powerful motor delivers a strong and cool air flow at 3 different speeds, allows you to choose appropriate wind speed as you wish.The working time of Speed 1 : 20 hours,Speed 2: 11 hours,Speed 3: 7 hours.A perfect partner in such a hot summer to keep you cool when travelling, working or doing sports 【Ultra High Capacity & Long Runtime】built-in high performance 5000mAh 21700 battery.The fan can be charged via USB cable by laptop, power bank, AC adapter and car charger,etc.It takes about 4-5 hours to full charge the fan, and it can run for 7-20 hours continuously(depending on different speed levels) 【What You Get】 (1) 1*Portable hanheld fan; (2) 1*USB C port charging cable; (3)1* Wrist Lanyard. Any questions,please contact us.With Miady, you're choosing a seamless blend of quality, innovation, and customer-centric service Overview Brand : Miady Color : Black+White Electric fan design : Wearable Fan Power Source : Battery Powered Style : Modern Product Dimensions : 2"D x 6.5"W x 9.1"H Room Type : Bedroom Special Feature : Foldable Recommended Uses For Product : Outdoor, Travel Mounting Type : Freestanding