Hotels, restaurants, restaurants, chain restaurants, with a la carte
You can use multiple branches
Single-desk clerk, a kitchen to cook acquiring and improve efficiency.
Also allows customers to choose their own dishes, self-service orders.
Convenient order.
video in china
http://v.youku.com/v_show/id_XMTUzNjY1NzM4MA==.html
video in USA
https://www.youtube.com/watch?v=lPYkPAzhf0s&feature=youtu.be
"Continued use of GPS running in the background can dramatically decrease battery life."