Distinguish between good and inferior species: sensitive switch, open, user-friendly, optical feedback, smooth use. Can distinguish good seeds from bad seeds. Bad seeds can affect people's health. Protect teeth and avoid damage: eating melon seeds often can cause tooth damage. Peeling artifacts will effectively avoid damage and protect teeth. Optical detection: Intelligent anti-pinch design, sensitive switch, high torque motor, long battery life, compact and portable, fast opening of the shell, Android charging, control chip. High-torque motor: high efficiency of opening the shell, the large-torque geared motor cooperates with optical detection to reduce the damage of opening the shell and realize the high efficiency of opening the shell. All-day battery life: long-term use, automatic fallback, safety protection: intelligent algorithm to prevent accidental injury caused by touching the finger.