HANDS-FREE: The hands-free fan was designed like a headset to free your hands anywhere; Fashion style makes you look so cool. Hanging around your neck, suitable for hot weather travel, saved you the embarrassment of suddenly sweating in public on many occasions. 3 ADJUSTABLE SPEED LEVELS: Speed level low/medium/high. Set the appropriate fan speed by pressing the on/off button. Neckband fan with powerful airflow can provide quick and easy access to instant relief from hot flashes. Hang the cooler fan around your neck and take it everywhere. DUAL WIND HEAD AND FLEXIBLE ARMS: The portable fan have two wind heads, can feel more powerful airflow, also can adjust the 360 direction which allows you to adapt to all different angles, portable, simple and easy to create powerful wind for you. It is ideal for personal cooling, camping, outdoor events, travel, office, church, hot flashes. USB RECHARGEABLE: 2000mAh lithium battery rechargeable built-in fan was powered by USB. No additional batteries are required. The small personal fan is compatible with most computers, laptops, portable chargers and other devices with USB output. 3-10 hours working time depends on different speed.