A sound communication bidirectional wireless

The object of the invention is a device (10) for wireless communication sound, the device (10) of sound communication system comprising a transmitting device (14) of at least one channel of order and at least one device mobile reception (16) of this route of order, the transmission device (14) and the portable receiving device (16) communicating wirelessly, the communication between the transmitting device (14) and the device mobile reception (16) being permanently established, and the mobile receiving device (16) comprising a relay device (20) for receiving the command channel and the listening means (22) about this order path connected to the relay device, the device (10) for wireless communication sound being characterized in that the relay device (20) comprises means for transmitting an order return path, and in that the device emission (14) of the order of track includes means for receiving the return channel of order, the communication of this order return channel between the relay device (20) and the transmitting device (14) wirelessly.