CHRIS KNAPTON / SCIENCE PHOTO LIBRARY CHRIS KNAPTON / SCIENCE PHOTO LIBRARY
Mobile telephone keypad. Close-up of the keypad of a mobile telephone. Mobile telephones use microwaves to carry call information, and so are not hampered by wires. There is some concern that the microwaves may be detrimental to the health of the telephone's user. Some of the keys seen here are "dial" (green handset icon, top right), "hang up" (red handset icon, upper right) and a voice volume control, marked "VOL".
Model release not required. Property release not required.