360 degrees close to the skin tightly, fits the curve of face and neck perfectly, gives you a reliable close shave every time. With the design of a double-track cutter, the contact surface is increased, so save greatly your time and energy when shaving. Its sharpness can last longer than normal blades. USB charging is perfect for your daily and travel use, you can take it anywhere, charge it through your computer, power bank, car charger, and another USB device, much easier and more convenient. With a 5-step battery display, you can quickly see how much power is left, reminding you of recharging when necessary.