1. Blade: This professional self-sharpening blade stays in shape longer and trims all hair types. 2. Powerful Motor: It is designed to achieve maximum performance with an advanced patented motor that provides great power and speed without extra heat and noise. 3.USB Quick Charge/Cordless Convenience: 1 powerful, long-lasting rechargeable battery, cordless convenience can be used anytime, anywhere. 4. Four-speed fine-tuning: control the length as you like. Meet the needs of different groups of people. Cut the hairstyle you want with ease. 5.LCD display: battery capacity (display battery charging status in percentage).