You can go about your day as usual—though much more comfortably—with the All 7 Portable Hands-Free Fan. This wearable gadget keeps you cool whether you’re doing activities indoors or outdoors. In fact, with three different speed settings, this little gadget can produce a maximum wind speed of six meters per second. And it achieves this through a unique fan system that doesn’t involve a propellor. Not only that, but it’s also so quiet that you won’t bother anyone else at..