Super Powerful Endurance Battery: The camping fan has a built-in 5200mAh battery, which can work continuously for 12-36 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, which means it can be used as an emergency power source for your phone or other devices. 3 Brightness & 3 Speed Settings: 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 adjustable brightness levels can illuminate your outdoor activities at night. Remote Control & Timer Function: The tent fan is equipped with an infrared remote control, you can use it to easily adjust the wind speed and timer. No more standing up or stretching your arms to adjust the fan. Hanging Hook & Detachable Design: The portable fan is equipped with a hanging hook on the top that allows you to hang it on tents, tree branches, dorms, or anywhere. Designed with detachable fan