1.The APP should be used in conjuction with snap button.
2.Register,log in.
3.The first time to use,user need to add device in APP，connect snap button to WiFi mobile phone connected via APP.
4.After snap button connected to router successfully,a commodity should be bound to the snap button by this APP
5.With the press of Multi-key button, users can order their favorite product and check order status and delivery details in APP.