The SASWELL Smart WiFi Thermostat 3H/2C is a programmable heat pump thermostat that can be controlled through Wi-Fi, app control, or digital interface. It is compatible with both heat pump and conventional multi-stage systems, and can be integrated with Google Home and Amazon Alexa for added convenience. This sleek black thermostat offers advanced control style and programmability, making it a smart choice for efficient climate control in your home. Please note that it requires a C-Wire for installation.