TOPWELL Mini Square Rechargeable Clip Base Fan with LED Light, Battery and USB Cable, Black Please remove the plastic insulation cover of the battery before using or charging, it only has one mode if it was powered by usb only When powered by battery, one bottom control 3 adjustable modes: High-middle-low, with clip base can be used as desktop fan or clip fan with the clip Press quickly for twice can turn on or turn off the side led light, long press for 3 seconds can activate power bank function Emergent power bank fan, can be used to charge you devices when doing out door activities 18650 rechargeable battery powered fan with an led flashlight in it can give out light if necessary, we have our logo "top well" on the product