acoustic device

A similar system is called a "magnetic acoustic device".

Definite proof that acoustic devices have a long-term effectiveness has not been found.

The acoustic device has the potential to catch many more, she said.

The acoustic devices cost $35,000 each, and the department bought two, The Associated Press reported yesterday.

The stethoscope is an acoustic medical device for auscultation, or listening to the internal sounds of an animal or human body.

Omnidirectional models: These acoustic hailing devices are capable of creating 360 voice communications and warning tones.

Following this attack, the United States Navy established a requirement for an acoustic hailing device.

After all, sir, it is primarily an acoustic device.

This research was made possible by the excellent collection of acoustic devices at the Institute of Physics.

By the end of that decade the company had added instruments for testing telephones and acoustic devices with defense applications.