Long-lasting Keep Cooling.-it's Lightweight And Be Long-lasting Cooling. Extra-long Battery Life And Not Easy To Consume Power. Fits Comfortable Around The Neck, It Would Keep Your Hands Free And Calm. The neck fan adopts a unique air outlet shape design, 360-degree surround type, the wind is increased by 90%. . The middle is made of food grade silicone, the angle can be adjusted at will, can better fit the skin, can effectively prevent slipping, flexible and not easy to break, cool and more comfortable, the charging port is simple and easy to use, and the unique design makes the left and right sides of the airflow evenly Main Product Features. . USB Rechargeable Battery - Our mini USB personal fan also has a built-in 1800Mah lithium battery that provides up to 8 hours of charge depending on mode selection. The portable neck fan adopts the latest low power consumption design, so after a short time charging, it can keep working for 2-8 hours. . Rechargeable Personal Fan - Improved design focused on lightweight comfort and flexibility The portable fan is very suitable for personal cooling, offices, churches, outdoor activities, such as camping , traveling, hiking, climbing and watching sports games, etc. .