The C6251 portable radio adapter cord is designed for durability and functionality in challenging environments, ensuring reliable communication. Featuring a rugged RFI-shielded coil cord, this adapter provides a seamless connection between your radio-specific connector and the 6200 series headset. When using the H6200-M headset in VOX mode with a Mototrbo radio, the VOX/PTT switch on the headset must remain in PTT mode, allowing the radio to automatically handle the voice activation. Pressing the PTT button will revert the radio back to PTT mode. To re-enable VOX, simply toggle the channel and return to the original.