A. It uses a safe and environmentally friendly ABS shell and a sophisticated electroplating process. It has a double - ring 3D knife net, with the shaving thickness of the knife net increased by 0.1mm. It is smooth and can remove hair from the root. B. After charging for 30 minutes, it can be used continuously for 1 hour. It is equipped with a high - definition power display screen, allowing you to keep track of the power at any time. It uses a USB interface and can be charged via a computer or a power bank. C. It is small in size and can be hung on a keychain or carried in a backpack. It is suitable for various scenarios such as outdoor travel, the office, and home use. D. The knife head can be removed for flushing (the body cannot be washed with water), which can help keep it clean and hygienic, bringing you a comfortable user experience. E. It can be used not only for shaving but also for removing body hair such as leg hair, armpit hair, and chest hair. It is suitable for both men and women.