Functional descriptions： 1:  Lithium ion battery 3.7V 500mAh     4700rpm motor 2：IPX7 class waterproof 3：USB5V cable charger  charging time75minutes  working time 90minutes 4：Noise＜55DBA 5：Smart ring shaped indicator light,the indicator light turns red during charging,and then turns green when it’s fully charged,the green light is always on when working. 6：Special ceramic cutter head for baby is 3 times sharper  than common manufacturers(refer to compared vedio of PHILIP) 7:The attachment includes USB charging cable,brush,oil bottle,powder puff,3-6mm limiting comb,9-12mm limiting comb,thinning comb with oblique tooth 8：Packing: standard blister color box