iGnasher: Clench your teeth for tunes

Need not to worry upon reaching for your bag or pockets to enjoy music on your iPod when on a public transport or crowded alley, just clench your teeth and your music player would start on an instant. researchers at Osaka University developed head gear with infrared sensors and a microcomputer which enable people to operate music players by clenching their teeth.  The computer receives command when the person clench his teeth for about a second which differentiates the action from chewing or talking.  The same technology also aims to be adapted for running other devices such as cellphones or electronic wheelchairs.