Impact I6-P2W-AT1 2-Wire Surveillance, Icom Radio (See List)
Icom IC-F3400D, IC-F4400D, IC-F3261, IC-F4261, IC-F9011, and IC-F9021 two way radios. Impact P2W-AT1 Platinum Series, professional grade 2-wire surveillance headset earpiece with full-size Push-to-Talk (PTT) and acoustic tube.