Reventlo jumped like a cat when his handheld unit beeped.

Eve's unit beeped twice, signaling incoming data.

Over the bulge of the cliff, they couldn't see what was happening at the base by the garage until Zainal's unit beeped again.

His unit beeped three times, and its lights glowed green.

After the unit beeped for a match, I passed through the gauntlet of threat-detection equipment and took the stairs to the fifth floor, which housed the administrative offices and conference room.

The unit beeped and produced a mug of steaming black coffee.

She swiped the card sharply through the reader, displaying a bit of temper, or so Jethri thought, and stood holding it in her hand until the unit beeped and the tiny screen flashed blue.

The unit beeped and the screen flashed.

The unit beeped and flashed a series of lights.

The unit beeped and flashed thirty-four point two seconds longer than the first time.