Related Clues:

• Many check for it by saying ''Hello!''
• Bounced-back sound
• Greek nymph who pined away for Narcissus
• You may test for it by saying ''Hello!''
• Microphone problem
• Canyon bounceback
• Guitar amp effect
• Repetitious sound
• Reverberated cry
• Reply to a yodel
• Be reminiscent of
• The bouncing bawl?
• ___ & The Bunnymen
• Cave feedback
• Canyon carom