Honeywell's Wi-Fi 9000 allows remote access to the thermostat through a computer, tablet, or smart phone with Honeywell's Total Connect Comfort Service. Please Note: Honeywell's TH9320WF5003 is the Pro version of their RTH9580WF Home version, available at big-box retailers like Home Depot or Lowes. The Pro version offers more options than the Home version like a 5 Year Warranty instead of a 1 Year Warranty. Buy the Pro version and get more Bang for your Buck! Product Features Include: Get Connected: Connect to home's existing Wi-Fi network.; Remote Control: Convenience, comfort and control from anywhere through web, tablet or smartphone access.; Apps available for tablet and smartphones.; Automatic software updates through Wi-Fi.; Selectable to 7 Day or Non-Programmable.; Program thermostat locally or over the web or app.; Customize the screen color to match any decor.; Application: Up to 3 Heat/2 Cool Heat Pumps; Up to 2 Heat/2 Cool Conventional Systems.; Terminal Designations: R, RC, C, W (O/B), W2 (AUX/E), Y, Y2, G, L, K.; Dimensions (Inch): 3 1/2" High, 4 1/2" Wide, 7/8" Deep.