3 ADJUSTABLE SPEEDS: Portable wearable bladeless cooling fan with 3 speeds for different temperatures. ERGONOMIC DESIGN: Neck fan is ultra lightweight, reduces neck pressure and is not uncomfortable to wear for long periods of time. LARGE CAPACITY BATTERY: Neck fan has a high capacity battery and offers 1‑15 hours of operation (depending on the speed). ADJUSTABLE WIDTH: Neck fan has a fully enclosed body and the width of the neck fan can be adjusted at will, suitable for adults and children. SILENT OPERATION, HANDS FREE: Neck fan with brushless motor for low noise operation. Hands free design, freeing up your hands. Lightweight and portable.