General description This Mini Portable Handheld Fan is designed for versatility and convenience, making it an ideal companion for outdoor activities and travel. With its 180° foldable design, it can be used as a handheld fan, neck fan (with cord), desk fan, or even a cell phone holder. This multifunctional fan is perfect for cooling off while watching dramas, working, traveling, or playing sports, especially during hot summer days. Technical specifications Battery: Built-in 3000mAh lithium battery Charging interface: Type-C Operating time: 4-10 hours on a full charge Noise level: Minimum 30 dB Folded dimensions: 9 x 8 x 4 cm Compatibility and accessories Compatible with 5V output adapters, laptops, computers, chargers, and other USB-equipped devices USB output can be used as an emergency power supply Installation No installation required; simply charge and use Usage 4 adjustable speeds: 1-3 speeds with growth, and 4th speed for circulating wind Hold for 3 seconds to turn off LED