10H WORKING: 5200mAh USB neck fan large capacity batteries provide 9-20hrs working hours duration. Very suitable for watching games, garden wedding, camping, outdoor event, trips, office, etc. ⚡ BLADELESS DESIGN & SAFETY: The bladeless design neck fan. It is very safe and will not get caught in hair and children's fingers. Don't worry about the danger that exists at any time ⚡ ADJUSTABLE & SOFT: The wearable neckband fan’s motor has been modified, an Innovative air outlet method. Adjustable silicone fits any neck size and is very soft ⚡ ADJUSTABLE NECK FAN: With flexible construction. The angle of use can be adjusted arbitrarily to automatically adapt to the size of the neck. Suitable for use from children to the elderly ⚡ HANDS-FREE: This innovative Necklace Fan is designed to be worn around the neck. Do not occupy your hands at any time, and maintain the best cooling angle ⚡ FAN