Smooth 1 100 Speed Control Provides progressive speed variation from gentle wind to more intense circulation Versatile Wearing Styles This portable cooling device features 5 wearing methods: waist strap, neck hanging, desktop stand, handheld use, or bag attachment Powerful Cooling Effect Equipped with a 9500RPM brushless motor and 5 fin configuration, this body fan creates 6.5m / s wind movement The 130° wide coverage reaches your back, neck and waist, effectively reducing body temperature by 5 10°C during outdoor activities Lightweight & Compact Weighs only 0.44lbs with 3.27×1.77×4.13 inch dimensions similar to a smartphone Easily attaches to belts, bags or fits in pockets without adding bulk Sturdy build available in green / camouflage colors for outdoor adventures Long Battery Life Built in 3600mAh battery works 16 hours at lowest setting (3 hours at highest) Includes quick charging feature (complete in 3 hours) and allows usage while charging Functions with multiple power inputs for energy supply