A new technology, Sgnl, allows you to answer phone calls through a rather unconventional method: your fingertip. Sgnl, a smart strap, was developed by Innomdle Lab. The idea was the brainchild of CEO Hyunchul Choi, who sought to solve a dilemma that smartwatch users faced when taking calls: everyone could hear what was being spoken about. The device receives voice signal from your phone through Bluetooth. When a signal is received, the strap creates a vibration through its body conduction ...