Handheld Fan + Power Bank: Our GOOJODOQ 2-in-1 mini fan can be used as an elegant desktop and handheld fan with powerful airflow, and is also a power bank with Type-C input and USB-A output to charge your mobile phone, providing flexible usage to meet your Outdoor needs. Hidden Blades, Portable Compact Size: The two unfixed fan blades can be placed into the storage bin to get protection and save space when the fan is not in use. 133x37x37mm after folded, the compact size is smaller than a mobile phone and suitable for a pocket and a bag. Its neck lanyard allows you to free your hands on the go. 3 Speed Levels, Powerful Airflow: Adopted 2 drone-like propeller blades with less wind resistance, it releases powerful yet quiet airflow of 3-speed levels, including a fresh breeze, comfortable wind, and strong airflow. In a one-button design, the airflow speeds are switchable quickly between 1~3 levels. Endurable Type-C Charging Battery: Its 2500mAh fast-charging lithium battery can endure 9-16 hours according to the speed setting, providing a comfortable experience all day. Its widely compatible Type-C charging port makes it convenient to be charged from car chargers, laptops, and more. Automatically Stop Safe Blades: Though rotating fast without housing protection, the fan is still safe. The blades are blunt-made and have a safety feature that stops if obstructed, preventing your hands from getting hurt by accident. Note: Please make sure kids under 10 use it under supervision.