"That allows mute people to speak" is not part of the original title nor is it accurate. The device in question is a sensor patch whose notable characteristic is it's thin enough to be comfortably attached to the throat for extended periods. The patch reads motions in the throat and sends those signals to an armband computer.

The researchers stated that, in the future, mute people could be trained to generate signals with their throats which the device would translate into speech.