A wireless microphone transmits the audio as a radio or optical signal rather than via a cable.

His hand squeezed the microphone transmit button.

The Yarrow could receive transmissions from other ships in normal space, but the microphone would not transmit.

A hidden microphone transmits the play's audio outside the room, where a stage manager delivers cues to the actors.

An iPod-size microphone that dangled around her neck transmitted the sound.

A microphone worn behind the ear transmits sounds to a computer about the size of a Walkman that's worn on a belt or in a pocket.

A microphone does not transmit a message when it sends an unvarying tone.

The microphone embedded in his maxillary, just above the teeth, picked up his words and transmitted them to Fess.

But the microphone would no longer transmit any sounds from the cabin.

Many designs of aviator's oxygen mask contain a microphone to transmit speech to other crew members and to the aircraft's radio.