Well firstly I cleared all of you that this is not a chargeable trimmer.A very good product and this is my first trimmer and work very well with me.This works only on Batteries and after 4 to 5 times usage you have to change the batteries.There are many extension .7mm, 1.5mm and many others for size of beard.Well this trimmer works fine and gives you a great quality and long time work.I hardly preferred this trimmer if you want a trimmer based on batteries and especially best for those who want to buy their first trimmer.
Thank you