Product features can be used when the lights can also be a fan. Products have four different power supply work, 1. Built-in rechargeable lithium battery, you can repeatedly charge .2. Solar charging work .3. Ordinary three AA batteries 2 work. A section of 18650 rechargeable battery work. Body stretch that is back and forth that is off. There are six high-brightness LED lights. Head with a fan, great wind, fan built-in high-quality motor running sound is very small. USB output power can charge most mobile phones.