PLEASE NOTE - RM4 pro does not support RF Rolling Code control or learning. Please check the User Manual or Instruction before purchasing to make sure your RF device is NOT a Rolling Code. Generally, the remote control that needs to be paired for the first use is Rolling Code. If you are not sure, please provide us with the Brand and Model so we can check it for you.<br>COMPATIBILITY - Support RF 433/315MHz fixed code controlled devices such as curtain/shades motor and projector; Support 50,000+ IR 38KHz controlled devices such as TV, STB, Air conditioner, Fan and more; Does not work with Bluetooth. Supported devices library is constantly being updated by the cloud, so your RM4 pro is always compatible with newer devices. Option to program your devices and learn buttons if certain cloud data is unavailable.<br>NEW FEATURES - Supports external Temperature and Humidity Sensor USB Cable (purchase separately), connect it to the RM4 pro, App will show room’s temperature and humidity. Zero Configuration, powered by FastCon technology, add the first FastCon device to the App as usual, after that, when you power on other new FastCon devices, they will be automatically discovered and shown in App.<br> APP CONTROL - APP is available now in App Store and Google Play. It has better user experiences in configuration and creating scene than IHC. Besides, if you have an Android phone integrates IR emitter itself, you can use it to control your IR devices from App as a test, before you decide to buy our product. Note: RM4 pro only supports 5V 1A adapter and 2.4 GHz (not 5 GHz) Wi-Fi for configuration in the App.<br>VOICE CONTROL AND IFTTT - Compatible with Alexa to voice control your TV, STB, Air Conditioner and Fans, compatible with Google Home to voice control your Air Conditioner. Make sure the devices can be remotely controlled from external networks. In Amazon Alexa/Google Home/IFTTT Apps, enable the skill/service named , link account and discover devices.