Pilot Communications USA PA-501C/PTT
This Push to Talk Switch plugs into the OPC-400 headset adapter and works with the ICOM IC-A22, IC-A3, IC-A4, IC-A5, IC-A23, IC-A6, and IC-A24. It is...
Portable Push-to-Talk (PTT) Switch features double-pole switch contacts to assure positive keying with no dead spots. High-impact ABS plastic housing for maximum durability.