First Alert Onelink Wi-Fi Touchscreen Smart Thermostat, Works with Alexa Works with Alexa for voice control (Alexa device sold separately) Wi-Fi enabled thermostat can be controlled using your smartphone or tablet Works with Amazon Alexa-enabled devices Programmable thermostat allows you to maximize energy efficiency and comfort Energy usage feature shows power consumption over the previous seven days Full-color touchscreen can showcase up to 100 photos