Outdoor Partner: The waist fan has a built-in 8000mAh rechargeable battery,which takes 2-3 hours to fully charge. A single charge of the shirt fan can provide up to 6-20 hours of continuous use (depending on the wind speed),and the Type-C serves as the charging port inlet, which can be with a power adapter or other devices with a USB port. 6-in-1 Design: This dual-turbo waist clip fan features a bottom air intake,dual clamps and a detachable design. 6-in-1 Multi-Function Fan:1)Clip the large clip to the belt - Waist fan;2)Clip the smaller clip to the shirt and connect the cable - Shirt fan;3)Hang the fan around your neck with a lanyard - Neck fan;4)Put the fan on the table - Desk fan; 5)Hold the fan in your hand - hand-held fan; 6)Connect the charging cable to the USB output port to charge your phone directly - Power bank. 4-Speed Powerful Turbine Airflow: Our designers have expertly balanced the waist fan's air speed and duration,equipped with a newly upgraded high-speed brushless motor and a 5-blade turbo fan that spins up to 9500RPM/s and provides airflow speeds up to 18 ft/s. High-Quality Material: Belt clip fan made with ABS plastic material,this belt fan housing is sturdy enough to be used outdoors or indoors for a long time. personal cooling device has an intelligent AI -saving chip, large-capacity lithium battery and LED display;5V-2A Type-C input and 5V-3A USB output. Rechargeable & Portable & Compact Size:The wearable fan full from the USB device 5V-2A input port in 2-3 hours,and supports working while charging.