The sensitive microphones would pick up her words, no matter how softly or loudly she spoke, and record everything.

Simple to operate, the Just5 phone comes equipped with big keys, a large screen, a powerful speaker, sensitive microphone and an emergency key.

There was a noise like a spider running across a very sensitive microphone.

That produces pressure waves that can be picked up by a sensitive microphone and turned into sound.

Hidden in the end was a highly sensitive microphone.

Even more remarkable, put a sensitive microphone in the ear canal and you will usually pick up an objective counterpart of that subjective experience.

A sensitive small microphone was mounted in the breast.

Under his breath, in whispered words so quiet that even Mother's sensitive microphones could not hear them, he spoke a final time.

With a pair of sensitive microphones, it can determine exactly where a sound comes from and if the sound is human speech.

Modern technology was a wonderful thing, and we didn't need some sensitive microphone picking us up.