Specification:Item Type: Portable Camping FanMaterial: Aluminum AlloyBuilt in Battery: Li Ion Battery 10000mahBattery Life: Level 1 Wind: About 27 Hours, Level 2 Wind: About 13 Hours, Level 3 Wind: About 8 HoursHow to Use:Fan function: press the switch once to start the 1 level, press the second switch to start the 2 level, press the third switch to start the 3 level, press the fourth switch to turn off the fan. the above cycle.Lighting function: press the switch once to start the 1 level, press the second switch to start the 2 level, press the third switch to start the 3 level, press the fourth switch to turn off the light. the above cycle.Timing function: press the switch once to start the 1h timer, press the second switch to start the 3h timer, press the third switch to start the 5h timer, press the fourth switch to turn off the timer. the above cycle.Indicator light description: when the output USB is working, the blue light is on, the charging status indicator is red, and the fully charged indicator is greenPackage List:1 xPortable Camping Fan1 x Bracket1 x User Manual1 x USB Cable1 x Hook