BLAUX Wearable AC comes with 3 settings from low, medium, to high. No matter what the weather situation is, you don't have to worry at all. It is very easy to use and charge. The LED light feature indicates the battery percentage. Use a USB cord to recharge it. The battery timing runs for 30 hours. It is just a super cool headphone lookalike that provides cool air. It has a filter which cleans the air and collects all the dust around.