Cold Compress Function: 2024 upgraded cold compress function, using semiconductor cooling technology, can quickly realize the cold compress function in 10S, the cold compress function area can be used to all parts of the body, to achieve the effect of rapid cooling of the body localization, so that you feel a touch of ice cold in the outdoor or extremely hot time. Powerful Brushless Motor: loranu personal handheld fan features a high-performance brushless motor, it has a faster speed (10000 rpm/min) and stronger wind (5.8 m/s). Compared to the normal motor handheld fans, the highest speed is 3 times than a regular personal fan. Truly achieve mini volume and powerful winds. 10H Max Cooling Time: loranu portable hand held fan comes with a 4200mAh rechargeable battery, which can provide 4-10 hrs duration (depending on different speeds and working modes). You can charge through a regular outlet, power bank, computer, or any other device with a USB port, just 3 hrs to have a full recha