
(ELECTRONIC HUMMING)
Westworld Season 3, Episode 8

He always sends
an ELECTRONIC payment,
Breaking Bad Season 4, Episode 9

(ELECTRONIC whirring)
The Big Bang Theory Season 5, Episode 23

...a state-of-the-art
ELECTRONIC access system.
The Big Bang Theory Season 3, Episode 13

(LOW ELECTRONIC HUM)
Westworld Season 3, Episode 8