Functional descriptions： 1:  Lithium ion 3.7V 500mAh     4700rpm motor 
2：IPX7 class waterproof 3：USB5V cable charger charging time 75minutes  working time 90minutes 4：Noise＜55DBA 5:   with acceleration shift,adapt to different hair types 6：Inteligent constant speed,cutter head will not slow down with the drop of voltage 7：Smart ring shaped indicator light,red light breathes when charging,blue light breathes when it's fully charged,blue light flashes when accelerates 8：Replaceable cutter head design: one main machine is equipped with 5pcs cutter heads,ceramic cutter head, lady trimming head,brow trimming head,lettering head,nose hair trimming head 9:The attachment includes USB charging cable,brush,oil bottle,powder puff,3-6mm limiting comb,9-12mm limiting comb,thinning comb with oblique tooth 10：Packing: standard blister color box