Hands-free fan was design as a headphone to rest your hands anywhere; Fashion style makes you look so cool. Hanging around your neck, suitable for traveling in hot weather, saved you from the embarrassment of dripping with a sudden sweat in public on numerous occasions. 3 ADJUSTABLE SPEED LEVELS Low/medium/high speed level. Adjust appropriate fan speed by pressing the power button. Neckband fan with powerful airflow can the fast and easy access to instant relief from hot flashes. Hanging the cooler fan around your neck and take it everywhere. DUAL WIND HEAD and FLEXIBLE ARMSThe portable fan have two wind head, can feel more powerful airflow, also can adjust the direction 360 degrees which allows you to adjust to any different angles, portable, simple and easy to create powerful wind for you. It's perfect for personal cooling, camping, outdoor event, trips, office, church, hot flashes. USB RECHARGEABLE 3.7V lithium battery fan built-in rechargeable was powered by USB. No extra batteries are required. The small personal fan is compatible with most computers, laptops, portable chargers and other devices with USB output. 2.5-6 hours working time depends on different speed.