The ying's smart door lock was established in february 2015 by lebo lebo educational technology ltd. In beijing and was officially authorized in march of the same year to act as the general agent for robo products in korea. The smart door locks of ying's smart door are produced using state-of-the-art technology to improve/enhance the functionality and intelligence of products, make them more user-friendly for consumers, and, in cooperation with other advanced smart door lockers, to develop and produce more advanced, intelligent locks, and the creative robot that occupies the wider market of smart door locks in korea was designed by engineers at seoul national university. Ying's smart door lock brand has been designated as a technical equipment provider by more than 1,200 primary and secondary schools and kindergartens in korea. Each year, 120,000 students study the roborobo smart locks. Korea robo robots won the technology award and the smart door lock industry award for five years ...