I've only been using the neck fan for two days but I love it. The weather was very hot and stuffy. When this fan blows on my neck and face, I finally feel relieved. And the fact that it's rechargeable, so I don't have to spend money on batteries that last a day, makes it a 5 star device for me. These two little fans really blow my mind. it keeps me cool Just a warning for people with long hair. This is a real work fan, so pull your hair back into a ponytail or style it somehow. You don't want your hair to get caught in the blades. giggle