Trim, edge, and shave any length of hair. Maintain your perfect stubble length Create precise edges & sharp lines with the contour-following technology and dual-sided blade Comes with 2 blades and 4 combs: Use the 4 click-on combs for lengths of 1, 2, 3 & 5mm Rechargeable Li-Ion battery delivers 60 minutes of constant performance after an 4-hour charge (2-pin plug) Replaceable OneBlade blades lasts up to four months* Water-resistant: Use wet & dry 3 Months Warranty