Description: Features: Two power supply modes,powered by 18650 battery,also you can take out 18650 battery,then powered by powerbank or USB wall charger or car USB charger. The portable necklace fan is particularly designed to be worn around the neck . Suitable size ,light weight makes it a perfect partner for travel and other outdoor activities. 3 Adjustable Settings,Low/Medium/High speed settings meet your different wind speed needs,2200mAh 18650 lithium battery fan. The fashion style makes you look so cool. Hanging around your neck, suitable for outdoor and indoor activities in hot weather. Specification: Material: ABS Input Voltage: DC 5V 1A Fan Rated Power:5W-9W Battery Capacity: 2200mA Color: Black, Blue(optional) Size: 15x10x4.2cm Note: 1.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Fan 1 x 18650 Battery 1 x Micro USB Cable 1 x Rope