plug and play,battery can be replaceable 
1.Rechargeable trimmer with 3 interchangeable heads 
2..Precision Trimmer with titanium blade technology for extreme precision and sharpness
3.5-position comb guide and 3 jaw line blending combs for precision trimmer 
4. directly charging and storage stand charging,directly use it when you chargred
5.Rotary trimmer for ear/nose hair
6.Foil shaver for a clean,smooth finish
7.Auto lube system means no need to oil blades 
8.strengthen force button design
9.cleaning brush 
10.Lubricationg oil 
11.work indicator 
package :color box + PVC tray