The VGR V-290 hair Trimmer uses high quality stainless steel blade for a more efficient, precise, smooth cut. The special blade suitable for all hair types. By use of the 3 adjustable cutting guide comb provided, you can adjust the length of the trim up to a maximum 3 mm with guide combs. Precision Lengths Adjustments Combs: 1/2/3 mm hairstyles and lengths. USB Type-C Charging Cable: The hair clipper is completely handy to carry and can be charged anywhere with the power bank or adapters (5V=1A), or computer. Lithium Battery: The powerful lithium 600 mAh battery allows 120 minutes of wireless cutting with a charging time of only 1.5 hours. The LED display shows the power status and add oil reminder.