A neckband that intercepts nerve signals allows you to talk on the phone without emitting a sound.New Scientist reports.

“With careful training a person can send nerve signals to their vocal cords without making a sound. These signals are picked up by the neckband and relayed wirelessly to a computer that converts them into words spoken by a computerised voice.

A video (above) demonstrates the device being used. The neckband, called the Audeo, was developped by Michael Callahan, co-founder of Ambient corporation.

The Audeo has previously been used to let people control wheelchairs using their thoughts. ”