Feceir&reg; Portable mini USB Fan 3 Speeds Strong Wind and Long Life 18650 Rechargeable Battery or Electric-Powered With Adapter (Blue) Dual Power Sources, plug in with Adapter(included) or use with Li-ion 18650 Batteries (included) With three 4-inch vanes to produce high-speed air flow at low noise level Press and hold button ON 3 seconds can turn on the inside colorful lights 3 Speed Full Charge last for 2~5hours-You can use it as torch Two-in-one design, used outdoors powered by battery and indoors by USB