My voice will activate your responses.

Wolfe's voice activates the final vault, knocking out Fawcett with the door.

Then she remembered that the voice activated shutter was also programmable, so she changed the activation phrase to "I'm yours."

This is an artificial intelligence device, voice activated and very interactive.

A voice activated GPS system displayed the current location on a display while additional safety was supplied by two door mounted airbags.

He reckons his voice activated machine is the answer.

If backing for the research is forthcoming, voice activated cash dispensers could be on the High Street within two years.

They can trigger "voice activated" recorders which can be very annoying when listening back later.

A voice by his ear answered, as the flyer activated its external speakers.

Also, if he was playing back the recording when voices activated the system again, the previous conversation would be erased.