Other functions consist of different rates and also vacuum systems. The different speeds are useless to the majority of people. You simply established it to a solitary rate most times, except if you are in an experimenting stage. Inspecting the overall power of the motor is more crucial than compatible speeds.
As for vacuum systems, that could be a great function. You will conserve time cleaning the mess after your beard trimming.
As for the excellent beard length, that is a personal decision. Maybe from a stubble short design to a lengthy beard. Simply examining all the length alternatives the leaner you are checking has will give you a concept concerning how helpful it can be for you. You don't require all kind of options and 10 different setups. You just need the one setup that is right for your perfect beard length.