Schluter Systems Dilex AHK 0.5 in W x 98.5 in L Light Anthracite Textured Color Coated Aluminum Tile Edge Trim Faucet saving Versatile smartphone compatibility Supports Versatile smartphone compatibility Supports select Apple iOS and Android devices Wi Fi connectivity Use your home network to easily sync your doorbell to your smartphone or tablet Manage your doorbell with the Nest mobile app Receive alerts accept the live video feed and speak with your visitor all from your smartphone 24 7 streaming Check in anytime and view a 3 hour snapshot history to see what you missed HD talk and listen Hear visitors loud and clear with noise and echo cancellation Person motion and sound alerts Detect when someone may be waiting at your door even before they ring the doorbell Night vision Features 850 nm infrared LEDs Mounting kit included Requires a wired doorbell and chime Quick response Respond to visitors with convenient pre recorded messages even when you can't answer ) 600 Smart Home Smart Home Enabled Electronic Mechanical Electronic Remote Access Remote Access Number of Batteries Required 4 Included Batteries Included 5 For Use on Walls Yes Width (Inches) 0 5 For Use on Countertops Yes For Use on Stairs No For Use on Movement Joints No For Use on Floors Yes CA Residents: Prop 65 Warning(s) No Edge Profile Cove base