MIKE AGLIOLO / SCIENCE PHOTO LIBRARY MIKE AGLIOLO / SCIENCE PHOTO LIBRARY
Telephone keypad. Computer illustration of a telephone keypad depicting telecommunications. The keypad is on a perspective background giving the impression of the keypad travelling at speed. In a telephone, each key lies above a sensor on the keypad's circuit board which passes on a signal when the key is pressed.
Model release not required. Property release not required.