a peripheral device comprises a first entity and a second entity . in operation , the first / second entities are configured to respectively : receive a first / second entity - related message from at least one other device to indicate the availability of the at least one other device for attachment , send , to the at least one other device , a first / second entity - related message indicating the availability for communication with the at least one other device , receive , from the at least one other device , a first / second entity - related signal including a first / second entity - related peripheral device identifier , send a first / second entity - related response to the at least one other device , receive , from the at least one other device , a first / second entity - related device response , and send , to the at least one other device , a first / second entity - related second peripheral response including the first / second entity - related peripheral device identifier .