Dimensions: 2.5" W x 5" H x 0.9" D.Motion triggered alerts sent via free ring app (iOS, android and windows 10) notify of arriving guests and deliveries,.2.4 and 5 GHz Wi-Fi connection, 2 way talk with noise cancellation, built in speakers, microphone, includes pro power kit, optional cloud recording, bank grade encryption, certified for outdoor. - Built-in 2-way speakers. - Extra doorbell chime will be needed if the doorbell is hardwired into an existing doorbell. - Overall Height - Top to Bottom: 8.5". Overall Width - Side to Side: 7". Overall Depth - Front to Back: 2". Dimensions: 8.5"H X 7"W X 2"D.Product Type: Surface Mount Pushbutton. - Shape: Rectangle Color: Nickel.