Ultra-quiet & 6-speed adjustableThe hand-held fan is recharable,the noise is <15db,ultra-quiet,the 6-speed is adjustable,the wind speed is graly increased from 1 to 5,and the 6-speed simulates natural wind,and automatiy adjusts the wind speed to meet various scenarios. stay cool anywhere Super long working timeHand-held fan,long-lasting battery life and recharable,4000mAh lar-acity battery,can work continuously for 4-18 hours (depending on the ar),and it only takes 1.5 hours to fully char Portable & Multiple Ways of UseHand-held small fan,you can hold it in your hand,or put it on the table,or hang it around your ne with the provided rope,the foldable design is convenient for you to carry while traveling Easy to useHand-held fan can be folded,adjust the air volume with one key,digital display of ar posit and remaining power,can be used as a mobile power supply for emerncy charging of mobile pes,notebooks and other mobile devices Summer AssistantPortable hand-held fan,very suitable for use at home,office,travel,shopping,cping,easy to carry..