Motorola RLN5312 Surveillance Kit, 2-Wire, Black, Earpiece w/PTT-Mic Combo.

This discrete two-wire surveillance kit has a black mic and push-to-talk (PTT) wire combined with a translucent acoustic tube and 3.5 mm threaded jack. Provides the radio user the ability to privately receive and transmit messages.  

Requires use of an adapter.

Use adapter BDN6783 for APX Series radios. Use adapater BDN6676 for XTS1500/ 2500/ 3000/ 5000 and HT1000. Use adapater PMLN4455 for EX500/ 600 and PRO7150 Elite.