It is a smart strap which can replace your regular watch strap and is connected to your phone with Bluetooth. It has Body Conductive Unit which transmit the sound vibration to your fingertip. The audio algorithm amplifies the signal to the right wavelength so vibration will move from hand contact to fingertips and in turn the sound will be transmitted. With this gadget you can either keep your phone in your pocket or on the table close to you and just do all calls by just raising your fingertip. SGNL helps in blocking the background noise while making calls. It is available in three different colors Grey, Brown and Green. The project is available and can be pre order here. It costs around 139$.