Male device, electronic tag and near-field communication system

Male device of a near-field communication system comprising:

• an elongate portion in a threading direction extending between a first end and a second end, for receiving at least one female device around the elongate portion by threading from the first end,
• a plurality of near-field communication antennas placed inside the elongate portion and juxtaposed and aligned in the threading direction extending between the first end and the second end, each antenna comprising at least one conductive turn and comprising two connection terminals at the second end, for connection to a reader circuit, such that each antenna is individually connected to the reader circuit and usable one-by-one by the reader circuit, the conductive turn being positioned so as to produce at least one magnetic field generating a flux passing through the elongate portion perpendicularly to the threading direction when the antenna is traversed by a current produced by the reader circuit.