- True noise reduction microphone
- Dual PTT button switches for redundancy
- Clear quick-disconnect audio acoustic coil tube (optional black tube available)
- Improved Kevlar Reinforced cabling and improved materials
- RELM - RPV516A, 599A, Plus/RPU416A, 499A Plus, RP4200
- KENWOOD - TK208, TK220, TK240, TK240D, TK248, TK250, TK260, TK260G, TK270,TK270G, TK308, TK320, TK340, TK340D, TK348, TK350, TK353, TK360, TK360G, TK370, TK370G, TK372G, TK373, TK430, TK431, TK2100(ProTalk), TK2102(ProPower), TK2130(ProTalk XLS), TK2160, TK2170, TK2200, TK2202, TK2212, TK2300, TK3100(ProTalk), TK3101(FreeTalk XL), TK3102(ProPower), TK3130(ProTalk XLS), TK3131 (FreeTalk XLS), TK3160, TK3170, TK3173, TK3200, TK3201, TK3202, TK3212, TK3230, TK3300
- HYT - TC620, TC700EX