In August 2008, Shenzhen Liantronics installed a led advertising displays in Airport Road,which is over 120 square meters.This is the biggest outdoor full color led display in Qingdao,moreover, it is the first display integrate with the wireless signal transmission technology. It plays the real time Olympic Games, all the playing files with surely 100% safety encrypt technology and protect the invalid inbreak, automatic power on/off and play for full 24 hours. In this way, it makes come true for the outdoor media Unmanned operation. It is the advanced installation technology and control system in the led display field.