Functional descriptions:
Battery:Built-in 1200mAh column lithium battery  
USB cable:5V 1A 2*28AWG   100CM   Micro USB  
Motor:F-280  3.7V 6000±10% rpm（No load）
Cutter tooth/foil:3Cr13 stainless steel
Charging time:2 hours 90%，3hours fully charged
Working time: 3hours
Charger power:5V 1A
Standard voltage:3.7       
Charging current:≤680mA
Quiescent current:＜20uA
Indicator light: the indicator light turns red during charging,turns blue during working,and then turns blue when it’s fully charged
Machine size:197.5*99*73
Material:ABS,PC,3Cr13 Stainless Steel installed
Packing:standard color box
Package attachment:general instructions,small brush,special USB charging cable,2pcs sticky paper tube,after-sales service card,etc.