Philips Norelco OneBlade Trim, edge, shave For any length of hair Face, Washable, Battery, Black, Yellow Philips Norelco OneBlade Trim, edge, shave For any length of hair Face. Minimum hair length: 0.0394" (1 mm), Maximum hair length: 0.197" (5 mm). Product color: Black, Yellow. Power source: Battery, Operating time: 45 min, Battery type: Built-in battery