Portable Handheld Fan with 4400mAh Battery - Up to 15 Hours of Working Time - Ideal Summer Gift for Men and Women

ALWAYS MAINTAIN COOL YOU WANT : The majority of handheld fan Only last 3 hours at highest speed and then last couple hours at medium or slow speed until turn off, it is not customers expected for longer working time, But YunTuo fan can meet your expectation. We specifically engineered fixed speed setting with 4400mAh rechargeable battery, our portable fan maintains 10 hours at highest speed, it won't weaker until the battery run out unless you change the speed, keep you cool as you want. KEEP YOU ALWAYS SAFE : The battery life and safe is what customer worried and concerned, with our newly designed batteries, it uses over electric current protection and low voltage protection to avoid overcharge and over discharge, which helps to offer thousands of charging times of battery for customer. YunTuo are trying our best to contribute to a more sustainably powered product. Mini fan comes with the usb cable that compatible with any USB port, such as computer, power bank, regular socket. US