All smart phones and tablets come equipped with Bluetooth®—basically a radio transmitter/receiver—which means you already have everything you need to set-up and control your Avi-on Bluetooth® with Mesh lighting control system. And unlike previous versions of Bluetooth®—which allowed one phone to control one device—Bluetooth® with Mesh allows you to control multiple devices at the same time. So with the Avi-on app, and the optional Remote Access Bridge, you can easily create flexible spaces by grouping and scheduling your lights at any time, from anywhere in the world.