The Hitachi Wired Controller Model HCWA21NEHH is a programmable thermostat that allows for 7-day programming. It features a square-shaped design and is wall-mounted for easy installation. The controller operates on low voltage and is made of durable plastic material. Its control style is a wired remote controller, providing convenient control of your heating and cooling systems. With its sleek white color and reliable Hitachi brand, this thermostat is an efficient and stylish addition to any home.