I have multiple products: switch, motion sensors (indoor and outdoor), contact sensors, water leak sensors, garage door sensors, smart water valves, power loss sensors, speaker hubs. All are working well and are extremely easy to setup. Only hubs use wifi. All the devices connect to the hub. Smart Control function allows you to have, say a door sensor directly control a light switch, without any internet. Very clever products and something from which Wyze could learn a lesson.