Ecobee Smart Thermostat Premium 2H/2C or 4H/2C with Heat Pump PREMIUM* Wi-Fi Programmable Smart Thermostat, 2H/2C or 4H/2C with Voice Control. Comes with Power Extender Kit (EBPEK201) in the Box Ecobee 6 Premium SmartThermostat Pro with radar occupancy, voice control, IAQ monitor*supports conventional 2H/2C and heat-pump 4H/4C applications.*Wire terminals (Rc, Rh, G, Y1, Y2, C, W1, W2, O/B, ACC+, ACC-, PEK+) *comes with one SmartSensor included*consider adding the optional EBRSHM2PKC01 2 pack smart sensors for even better temperature averaging (extra) Brand Ecobee Country of Origin Malaysia Colour Silver Thermostat Type Digital Programmable Program Options 7-Day Stages 4H/2C - Heat Pump, 2H/2C - Conv Supply Voltage 24V Product Length/Depth 1.02 Product Width 4.09 " Product Height 4.09 " Shipping Length/Depth 5 " Shipping Width 6 " Shipping Height 3.09 " Shipping Weight 2 lb