A portable fan looks like headphone, Which allow you free hands, Fashion and moveable design make you look so cool and you can take it with you in hot weather. USB rechargeable fan with build-in 2400 mAh battery, Convenient to charge via laptop, phone charger, power bank, or any other USB charger. The wearable fan's motor has been upgraded to reduce noise and supply powerful airflow during using, It is quiet enough to hear your own breath, perfect for daily work and sleep use.