RuiLing Camera Style 4-inch Vanes STEPLESS SPEED Portable Mini USB Fan Rechargeable Batteries Handheld Fan Desktop Fan,Large Airflow, Personal Cooling, Quiet Operation - Pink RUILING PORTABLE USB RECHARGEABLE FAN - powered by Built-in 18650Li-ion battery,4" palm-sized fan,lightweight and compact,making it easy and convenient to take with you anywhere and anytime. NEW FASHION CAMERA STYLE FAN - Intelligent control system, reliable performance,fully functional,Energy-efficient, brushless DC motor with high Torque at low speeds Large Airflow, Quiet Operation. makes the fan working for a lasting-long lifetime and high energy conservation. STEPLESS SPEED OF THE AIR FLOW SPEED - high, mid and low. Upon your choice, the fan works from 3-9 hours after fully charged. It produces strong wind to keep you cool and relaxed in the hot summer. BATTERY REMOVABLE AND EXCHANGEABLE DESIGN - Perfect for the user to maintain. Perfect cool usb fan for indoor the office,home,dorm, study,library, games room or outdoor activities - On the go ,beach, picnic, sporting events,camping, hiking, cycling, backpacking, biking, climbing, boating, travel and more. MULTIPLE WAYS TO CHARGE FAN WITH LITHIUM BATTERY - Built-in high capacity lithium battery,Connect USB charging cable,compatible with computers, laptops, portable chargers and other devices with USB output.