The bone-conduction receiver is compared to the telephone receiver edition more effective, because of the constant pressure-intensity and position during the telephone call. You can connect the bone-conduction receiver at the headphone socket of the telephone. The standard flashtel II receiver can be used as a microphone, while the loudspeaker of the receiver is used in assistance only. The bone conduction receiver provides benefits not for hearing impaired persons only but facilitates the understanding for normal hearing persons when calling in noisy surroundings, such as in a workplace with manufacturing facilities, in large production halls or in busy pubs can hear the other person much more clearly.