If you need a mini portable fan to carry around with you or to have at work, then this is perfect! No more looking for outlets, batteries or draining your phone battery. This little gem just needs charged via a USB cable and you are good to go. It is perfect for the office, you can keep it plugged in to your computer and it’ll keep you cool all day. It has high and low speeds and is super quiet. This is small enough to slip into your purse to have instant on the go coolness! Having two fan heads really gives this mini fan an edge above all the rest. I absolutely LOVE mine!