Set of 2 800MHz BNC connector wireless antennas. - Type: Whip antenna - Quantity: 2 - Connector type: BNC connector - Angle: Adjustable Thank you for viewing. These are the genuine antennas that came with the audio-technica receiver ATW-R3100bj. Due to aging, the resin parts have cracked or chipped (I believe the internal springs and wires are fine), so they have been reinforced and repaired with synthetic rubber and adhesive heat shrink tubing. Operation has been confirmed, and they can be used without any problems. If anyone needs them, please feel free to purchase them.