This is the British English definition of fresh-faced. View American English definition of fresh-faced. Change your default dictionary to American English. View the pronunciation for fresh-faced.
In recent decades, wireless doorbell systems that do not require wall wiring have become popular. The doorbell button contains a built-in radio transmitter powered by a battery. When the button is pushed, the transmitter sends a radio signal to the receiver unit, which is plugged into a wall outlet inside the building.
What Ring is trying to do is expand that simple circuit-break button of a doorbell into a 21st century video and audio security system. Motion detectors, HD video, microphone and speaker, WiFi chip-you can't run that off a single AA battery.