The Google Nest Learning Smart Thermostat (3rd Gen) in Mirror Black is a corded electric device that comes with a screwdriver, trim plate, complete new install kit, mounting hardware, batteries, and display base. It features a 2.08-inch display size, 3 heat stages, digital display, energy reporting, and weather tracking. The thermostat is programmable for 5 to 1 days, has compatibility with various heating and cooling systems, and can be controlled through Nest's smart home compatibility. Made of stainless steel, this circular-shaped thermostat is designed for wall, surface, or cabinet mounting and is equipped with temperature, humidity, and proximity sensor technology for efficient control.