This Portable Mini Waist Cooling Fan features a necklace strap for multi-use for a hands-free experience. It is a USB rechargeable device with up to 15 hours of usage (on low speed) and 3-speed levels. For a hands-free experience, this fan can be clipped on the waist with its inner belt clip and external clothes clip. You can hang it around your neck using its necklace strap. This fan is ideal for outdoor use, such as camping, fishing, gardening, parks, recreational use, hiking, and biking.