Yes, Ecobee devices can be used with voice commands. Many models, such as the Ecobee SmartThermostat with Voice Control, come equipped with built-in voice assistant capabilities. Users can control their thermostat features, such as adjusting the temperature, changing modes, and setting schedules through simple voice commands. Additionally, Ecobee devices are compatible with popular voice assistants like Amazon Alexa and Google Assistant, which allows for even more integration and convenience. Users can enable these features through their respective smart home ecosystems, providing hands-free control of their heating, ventilation, and air conditioning systems. For detailed instructions on setting this up, it may be helpful to refer to the resources available on the Ecobee website, where you can find guides and support for your specific device.