General description This mini portable fan is designed for versatility and convenience, featuring a 180° foldable handle that allows it to be used as a handheld fan, neck fan (with cord), desk fan, or cell phone holder. With its compact size of only 9 x 8 x 4 cm when folded, it is an ideal companion for cooling off during various activities such as watching dramas, working, traveling, or playing sports, especially on hot summer days. Technical specifications Battery: Built-in 3000mAh lithium battery Charging interface: Type-C Operating time: 4-10 hours after full charge Noise level: 30 dB at lowest setting Wind speed settings: 4 adjustable speeds Compatibility and accessories Compatible with 5V output adapters, laptops, computers, chargers, and other USB-equipped devices Can serve as an emergency power supply via USB output Usage One-click adjustment for 4 wind speeds Hold for 3 seconds to turn off LED digital display shows battery level and current wind speed Low battery reminder for