Miady 2-Pack 5000mAh Handheld Portable Fan(7-20 Hours Runtime), USB C Rechargeable Battery Operated 3 Speed Mini fan for Home Office Travel Outdoor and Camping

❃Uninterrupted Power Supply: 5000mAh rechargeable battery, can bring you 7-20 hours of standby time. 2 Pack fans, provide you double cool. let's always take away from hot! ❃3 Adjustable Speeds: The built-in, powerful motor delivers a strong and even cool air flow at 3 different speeds with Max. airflow up to 18ft/s(5.48m/s). Note: Tap the button to turn the fan on/off and change the speed mode. ❃Memory Function: Always remembers the speed last used for added convenience. USB C input allow you to charge wherever there is a USB device. The fan only need charge for 4-5 hours to use for 7-20 hours. ❃Portable Design: Compact design is easy to hold, easy to toss into a bag and incredibly portable. It is a wonderful choice for you when commuting, shopping, and any not cool moments. ❃Rechargeable Battery: Thanks for 21700 battery, it can offer more capacity than 18650 battery. Can bring you 20 hours cool in the low speed. With 5V/2A USB C port input, it can be fully charge by 4-5 hours.