Komunica PGM 20 K (Type K) airband De K PO AV SW N 0M4N (SW4N) is De K PO AV SW N 0M4N (SW4N) is een robuuste 4 weg antenne switch Advantages of the Firestik MK M2: Thanks to built in noise canceling The headset is equipped with a K1 2 pin connector and is therefore compatible with numerous Kenwood models