HD CAMERA: Always have a clear view of your home's entrance with wide-angle HD video. LED RING: LED ring provides an array of light patterns to indicate the devices current function. SPEAKERS: Two configurable speakers ensure that not a word is missed, regardless of your surroundings. The Ring Video Doorbell BUY NOW MOTION DETECTION: Motion sensors activate the camera and trigger instant mobile alerts when movement is detected. MICROPHONE: Only hear what matters most thanks to perfectly tuned echo cancellation.