The following is a step-by-step guide: (1). Download our "SmartTherm" application in Google Play or iOS App Store; (2). Start the application and register a new account (if you have already registered, please log in); (3). Open the SmartTherm device and connect with the "SmartTherm" application; (4). Important information: You can use SmartThermApp to rename the device. Therefore, if the thermostat is named "Livingroom Light", then after discovering the device in step 9, Echo will get the same name. (5). Download the Amazon "Alexa" application from the Amazon Market, Google Play or iOS App Store, and connect Echo with the "Alexa" application; (6). Search "Ocstat thermostat" in the Alexa Skills directory; (7). Click to enable the "Ocstat thermostat" skill, then enter your account username, password and area on the link page; (8). Talk to Echo "" Alexa, discover the device. ". Wait until Echo answers" Discovery completed "; (9). Now complete all settings. Try talking to Echo to control your device (10). Alexa, set Ocstat Thermostat to [off,auto,Manual,single day,5+2 mode,24 hour] Alexa, set Hallway Device to 35 Celsius.