Related Clues:
- Identical responses
- They repeat whatever you say
- Hollow replies
- "Wake Up...You're Liberal!" author Ted
- Reflections of sound
- Returning sounds
- Natural sound repetitions
- Natural sound reflections
- Reverberations of sound
- Reflections of sound waves
- Resounds, reverberates
- Repetition of sounds
- Sound reverberations
- Repetitions of sounds
- They could be sure to come between the poles or inwards, perhaps