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