Personal necklace hands-free fan, just hang the fan around your neck and enjoy a cool breeze. It won’t swing back and forth or hurt your neck while you walk. A must-have for travel, outdoor. A must-have for hot flashes. Can be adjusted up or down, keep you cool and calm on the go. Can be powered and recharged by any 5V output USB device (such as a power bank, computer, etc). Easy to put in a bag and carry with you, keep cool everywhere. 2 Adjustable Speeds. Keep cool on hot summer days, anywhere you go. A great gift for family or friends in summer.