PD500/TC700-U94 PTT For Hytera TC-580 TC-600 TC-610 TC-618 TC-620 TC-700 TC-2110Specifics 1. Type: ? PD500 TC700 U94 PTT 2. For: Walkie Talkie Headset 3. Material: Plastic 4. Designed for active combat and high noise applications. 5. The PTT assembly interfaces low impedance headsets and flight helmets with PRC radios. Compatible With Radio Models: Fit for HYT Hytera TC 446S, TC 500, TC 500S, TC 508, TC 510, TC 518, TC 580, TC 600, TC 610, TC 618, TC 620, TC 700, TC 2110, TC 1600. PD415, PD500, PD505, PD560, PD565. TD500, TD510,