1、The razor is driven up and down, which is convenient, quick and easy to operate. 2、Removable cutter head, close to the surface of the knife net, safe and sanitary. 3、Built-in smart chip to greatly improve charging efficiency. 4、The unique tapered design, it can be used as the escape hammer to break windows and escape in case of emergency. 5、Suitable for fast charging of various USB interfaces. Features: The razor is driven up and down, which is convenient, quick and easy to operate. Removable cutter head, close to the surface of the knife net, safe and sanitary. Stainless steel blades for durability. Built-in smart chip to greatly improve charging efficiency. The unique tapered design, it can be used as the escape hammer to break windows and escape in case of emergency. Suitable for fast charging of various USB interfaces. Multi-function USB car razor, charged by razor and car USB. Specification: Item Type: USB Beard Shaver Material: ABS Color: Black Power: car power supply Size: Approx. 3.5* 3.5*11cm / 1.4* 1.4* 4.3inch Weight: Approx. 152g Package list: 1 x Beard Shaver 1 x Manual 1 x Cleansing Brush 1 x Blade Instructions for use: Gently twist the bottom counterclockwise and remove the bottom cover. USB port, plug in the power to charge 3-4 hours.