With cutting lengths between 0.4mm and 18mm and self-sharpening comfort tip blades, you can style with precision, thanks to the Remington B4 Style Cordless Beard & Stubble Trimmer MB4000. Achieve precise styling with minimum fuss. The intuitive zoom wheel lets you effortlessly switch between hair lengths, to trim your sideburns and define your beard. The self-sharpening, removable, washable blades make this trimmer low maintenance, and with 40-Minutes cordless runtime - you always have time to maintain your individual look. Self-Sharpening Comfort Tip Blades Removable Washable Blades Zoom Wheel Length Adjustment for Easy Precision 1 x Adjustable Comb Trimming Lengths (0.4mm-18mm) 0.5 Increments, up to 5mm 1mm increment from 5-6mm 2mm Increments from 6-18mm Cordless with up to 40-Minutes Usage Time 10-Hour Charge Time Charging Indicator