The Nest Learning Thermostat works with most HVAC systems to keep your home the perfect temperature all year round. FEATURES: The Nest Learning Thermostat works with any Nest Temperature Sensor. Put the included 2nd gen sensor in any room to help manage hot and cold spots., Adaptive Eco helps find an energy-saving temperature, based on the temperature outside, Smart Schedule learns the temps you like, and when you like them, and suggests tweaks to help you save, which you can accept in the Google Home app, Control your Nest Learning Thermostat (4th gen) and your other compatible smart home devices in the Google Home app, System Health Monitor helps catch many issues early, When it’s time to change your air filter, you’ll get an alert based on actual use, and you’ll get seasonal maintenance reminders, It’s easy to install yourself, just follow the step-by-step instructions in the Google Home app, With Power Sharing, there’s no C-wire required for installation in most homes. WHAT'S INCLUDED: Nest Learning Thermostat display, base, Trim plate, steel plate, Mounting screws and wiring labels, Nest Temperature Sensor (2nd gen). DETAILS: 1.1" H x 3.9" W x 3.9" D, Weight: 0.35 lb., Compatibility: Android, Apple iOS, Mac, Windows, Google Assistant, Amazon Alexa, Wireless: Wi-Fi 802.11n (2.4 GHz / 5 GHz), Use 1 rechargeable lithium ion battery (included), Manufacturer's 2-year limited warranty: For warranty information please click here - https://cs.kohls.com/app/answers/detail/a_id/140. Size: One Size. Color: Silver. Gender: unisex. Age Group: adult. Material: NONE.