By default, the Echo Channel is one of the interactive channels that is active on each Relay. It is designed to play back the user's voice in up to three speeds:
Normal - High Pitched (Fast) - Low Pitched (Slow)
Ensure the Channel is enabled and your Relay is on the Echo Channel
Press the talk button and speak your message into the Relay!
When releasing the button, the Relay will repeat your voice in a normal tone, high pitched tone, or a low pitched tone.
Messages sent to this channel are not heard by any other users
The Echo Channel can be added or removed from Relays by utilizing the Relay App. Helpful article for that here: How to Enable Channel Access on a Relay