Related Clues:

• "Can you hear me? ...hear me?"
• Something a yodeler may hear
• Empty room sound
• Bounce, as off a canyon wall
• Duplicator
• Stairwell sound
• Skilled mimic
• Rebounded sound
• Sound effect in a valley
• Narcissus adorer
• "Hello, hello, hello," e.g.
• Return a call?
• A natural sound reflection
• Repetition of sound
• Reverberation of sound