The Professional VGR V-052 hair trimmer uses a high-quality Precision blade for a more precise, efficient and smooth cut. This special blade prevents the skin from injuries, It is suitable for all hair types. By using the 1 adjustable cutting guide comb provided, you can adjust the length of the trim between 0.5mm to 10mm in 0.5mm steps. Precision Length Adjustment Combs: 0.5mm-10mm for the desired lengths and hairstyles. Lithium-Ion Battery: The powerful lithium-ion 500mAh battery allows 90 minutes of wireless cutting with a charging time of only 2 hours. Detachable Head: Quick and easy to clean after using this hair trimmer. The knife head can be removable.