Philips BEARDTRIMMER Series 5000 BT5205/83, Built-in display, Washable, Oil-free maintenance, Battery, Black, Silver Philips BEARDTRIMMER Series 5000 BT5205/83. Minimum hair length: 0.0157" (0.4 mm), Maximum hair length: 0.276" (7 mm), Step precise: 0.00787" (0.2 mm). Product color: Black, Silver, Blade material: Stainless steel. Power source: Battery, Operating time: 70 min, Battery type: Built-in battery