This fan is made of Eco-friendly ABS and silicone. It adopts a personal, hands-free and headphones design, can be hung on the neck. Also as a handhold fan, it can be placed on the table as a desktop fan. Adopted with the double wind-heads design that 360-degree universal adjustment, which allows you to adjust the best wind direction. It's equipped with a built-in 1500mAh rechargeable battery that works with USB-port devices