Key Features User Friendly Design Easily and flexible adjust length settings Comb-type Fuzz Notifies charging when plugged Philips QT4000 Beard Trimmer is an ideal tool for men who love to have a stubble. It is cordless with stainless steel blades and the best part its head is detachable and washable. It requires 100 - 240 V of power and comes with Ni-MH battery of AAA size. It comes with easy to choose and lock-in length settings between 1 to 10mm. The in-plugged notifies that charging is on and it takes 10 hours for getting fully charged and can be used for 35 mins giving you comfortable and satisfying feel after every shave.