I am talking about Nova Advance Trimmer.When I was purchase it.It was working very good but after few shaves later.It is working slow.It has very sharp blades.This product is easy to use.It has a very good battery backup.It has some accessories like comb etc.They all are good.But after few months later it will getting jam.The cost of Nova trimmer is very low , so it is good for us.If company will use more good quality motors then it will be an awesome product.