Ultra-powerful endurance battery: The camping fan has a 5200 mAh battery that can work continuously for 12 to 36 hours at different speeds. You can charge it via a USB charger, laptop, car charger, etc. In addition, the tent fan has a USB-A port so it can be used as an emergency power source for your phone or other devices. 3 Brightness Settings & 3 Speeds: This USB camping fan is available with 3 wind speed levels (low/medium/high) to meet your different cooling needs. The LED lights with 3 brightness levels Adjustable lights can illuminate your outdoor activities at night. Remote Control & Timer Function: The tent fan is equipped with an infrared remote control, with which you can easily set the wind speed timer. You no longer need to stand up or stretch your arms to adjust the fan. Hanging Hook & Detachable Design: The portable fan is designed with a hanging hook on the top, which allows you to hang it on tents or branches, dormitories or anywhere. Designed with detachable fan