Upgraded LED indication panelSmart digital display panel, one click to show the battery percentage or speed level. 5 seconds automatically rotates between battery and speed. When charging, the panel will show the battery percentage from 0% - 100%, don't worry about a charged device. Compact and Collapsible288 Grams, when the fan is extended, it is the same size as an extra headphone that fits perfectly around the neck, so light that you wouldn't even feel it. Even better, when the fan is folded, it's the size of a regular phone! Ultraportability and ultimate comfort, make your summer sweat-free. Large 2 x 1000mAh Battery7-8 hours of battery life when fully charged, long enough to cover a regular cycling session or a gathering in the park. Long-lasting battery to ensure you endless breeze during a hot summer day Bladeless Twin Turbine PoweredInnovative bladeless design, no more hair getting stuck in the fan, no more unbearable noise, ultra quiet you will likely forget you are wearing it! 60 parts turbine driven fan blades fit tightly in the electroplated case. No more hair getting stuck, just wind. 360 Adjustable PositionUniversal angle adjustment, individual exclusive use of the fan.