Portable Fan Neck Cooler Three-speed Adjustable USB Fan for Outdoor Sports Handsfree Neckband Fan

Do you still suffer from the excessive heat of summer? Then this portable fan will be your perfect choice in hot summer days. On-neck design convenient to use and keep your hands-free. Features: On-neck design free your hands. Suitable for traveling in hot weather. Three-speed wind speed using the principle of fluid dynamics reducing the natural wind. Adopt the technology of semiconductor refrigeration reducing the temperature of your own space by up to 6~9 degrees. Built-in 2*1800mAh polymer-lithium-battery 3-hours-of-charging can last 4-8 hours. Suitable for all kinds of scenarios such as reading sports office etc. Adjustable design side steering 45 degrees. Ergonomic design fit neck comfortable to use. Specifications: Item type: Fan Color: White Black(Optional) Voltage: 5V Battery-capacity: 1800mAhx2 Working current: 1A Interface: 5V2A USB Charging-time: 3h Endurability: Small wind for 18 hours Middle wind for 12 hors High speed wind for 8 hours/ With refrigeration chip: 3h(Small wind) 2h35min(Middle wind) 2h10min(High speed wind) Electric quantity display: Blue light(100-70%) Blue and red flashing(70-20%) Red light(≤20% Please ) Package weight: 500g/1.1pounds Package size: 220*200*80mm/8.66*7.87*3.14inches Packing List: 1 * Fan 1 * USB cable