✨ Microprocessor control and touch screen operation, DC brushless motor offers stable and low noise operation. ✨ 6 Fast preset programs for PRP/ PRGF/ CGF/ A-PRF/ i-PRF/ A-PRF ✨ Self-diagnosis system can automatically detect the faults of over-speed, no speed signal, and the door lid interlock system during running, ensuring the operation safety. ✨ Compact design and offers ideal performance.