The Carrier Infinity Programmable Thermostat 7-Day is a sleek black rectangular unit designed for efficient heating and cooling control. With its 4-wire wire configuration and corded electric power source, this thermostat offers two heat stages and two cool stages for optimal comfort. The thermostat is compatible with Amazon Alexa for smart home integration, features frost protection, and has a 10-year manufacturer warranty. Perfect for home improvement projects, this programmable thermostat from Carrier is a reliable and convenient addition to any home.