Transom AE comes equipped with Alexa-enabled features that allow you to use your voice to take control of your home comfort via the Amazon Echo device, or through the Alexa app. It fits windows 26" to 40". It has powerful airflow circulation. It is electronically reversible and features fan/off/exhaust modes; 4 speed + auto temp control; weather-resistant case; 8-foot cord and 5 year warranty.