Concerning this item Accurate and Sharp Shear Blades - The men's hair clipper has titanium-coated blades that allow for precise and smooth cutting and trimming of long and thick hair without snagging or pulling. Longer Operation Duration: The robust hair clipper has a 2000mAh Li-ion battery that can be recharged, allowing it to operate cordless for up to 180 minutes after a full 3-hour charge. The men's clipper holds its charge for the entire day when used corded. The professional hair clipper works well for hair cutting at home or at a barbershop because it has a power cord for fast charging. Several Cutting Lengths: Four attachment combs (3mm/6mm/9mm/12mm) are included with the hair trimmer. Users can swap out combs based on their individual needs. For a close cut, you can also use the grooming kit without the comb.