6. Motor strength adjustment when encountering resistance.
7. High confidentiality. ZT-K33 type has remote control function, the remote control is sensitive, and the distance of remote control is far. Anti-interference is strong. It adopts hopping code technology which is the most advanced at present. And it is safer and more confidential then conventional remote control. The password of conventional remote control has 6561 groups and the password of the new type can reach 1 million groups and can not be decoded.
8. Automatic lock functions for remote control keyboard. The automatic lock remote control time is 60 seconds, and it avoids the danger of pressing by mistake.
9. Infrared anti-pinch function.
10. Led displays fault detection.