This Philips Beardtrimmer Series 3000 Stainless Steel Blades Cordless Beard Trimmer is extremely convenient and easy to use. The DuraPower technology lowers the friction on the blades, which protects the motor and the battery from being overloaded. This way, the battery life of your trimmer is increased by 4 times. The zoom wheel lets you choose from 0.5 to 10 mm length settings, with 1mm precision steps. Easy to hold and use. Designed to help you trim those hard-to-reach areas.