As a leading handheld fan manufacturer, we have been dedicated to research and develop small battery-operated fans for many years, which brought us more than one hundred patents in return. For now, we are producing a variety of battery fans, including handheld fans, desktop fans, misting fans, necklace fans, etc. Our mini portable fans would be essential for you in the hot summer. Choose the favored one, take it anywhere you go! Outdoor using: This compact small fan can be easily put in a purse or bag, and take it along with you conveniently. It would be a perfect choice for you when going outdoors, like shopping, traveling, hiking, camping, climbing, exercising, watching a ball game, etc. Indoor using: Just put it on the desk, then you can enjoy the cooling breeze at home, office, classroom, library, and more. How to activate power bank feature? Just connect the fan with phone via usb cable and long press power button of fan for 3 seconds, it will activate power bank feature to charge for your phone. Built-in make-up mirror With a built-in mirror on bottom of fan, you can makeup easily anywhere and don't worry about losing your makeup anymore. Super Portable This mini personal necklace fan with hands-free design, you can just hang it around your neck via a lanyard, take it along with you and enjoy cooling breeze anywhere you go. Easy to Clean The front cover is detachable, so you can detach it from fan and clean fan blades and cover whenever it get dirt, always keep it as a new one. Low Noise This portable neck fan work pretty quiet, you can hardly hear the noise while its working.