TP-101 to TJ-102 ExtensionTP 101 to TJ 102 Headset Extension Cable Extends the distance between your PTT and your headset. Essential when your radio is on your hip but your PTT needs to reach your chest rig, or when the stock downlead is too short for your kit configuration. Signal Chain Headset Downlead (U 174 U) This Extension PTT Radio Connectors Input (from headset downlead): TJ 102 Female receives U 174 U plug Output (to PTT): TP 101 Male plugs into any NATO Nexus jack