| 1 | He buzzed for his secretary to come. | |
| 2 | The boss buzzed for his secretary. | |
| 3 | Two key electronic code lock! Experimental electronic circuit to monitor! With buzzer alarm! | |
| 4 | What is the location of each beeper in the world? | |
| 5 | Suddenly, he hears the access buzzer from above. |
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