Shoe Dorothy caught in stomp can call a taxi

News on January 4, a few days ago, named Dorothy, an interesting product coming into the development phase, it is a physical trigger that it can connect to the application on Smartphones, put it under my boots, then set the “knock three times on the heel” after the need to trigger the behavior. Under it, stamp your feet, you can take a taxi, pick up the phone or send their location to friends, playing handsome and convenient ~.