The human hand as part of the receiver The FingerWhisper currently being developed at the NTT DoCoMo Yokosuka R&D center, in its quest for future communications possibilities, is a new kind of wearable telephone handset that utilizes the human hand as part of the receiver. Worn on the wrist, this watch-like terminal converts voice to vibration through an actuator and channels this vibration through the bones to the tip of the index finger. By inserting this finger into the ear canal, the vibration can be heard as voice. We call this process the bone conduction receiving mechanism. Since the microphone is located on the inner side of the wrist, the posture of the user’s hand, when using the terminal, is the same as when using a cellular phone. http://www.nttdocomo.com/technologies/future/finger/index.html