Users need to possess some Ralinwi smart lights and a Ralinwi account which can be registered in our smart light APP: MHaSa (Can be downloaded both in APP Store or Google Play). After users register an account, press the ENABLING button and input your account to finish the account linking. Then, users can press "discover devices" button or simply say "Alexa, discover devices." to find the available devices. Be sure you have bind these devices from MHaSa before they can be discovered. Users can also create groups to control several lights at one time. With all these things done, enjoy your smart life with Alexa and Ralinwi.