Possible Clues:

• Earphones and microphone assembly
• Combined earphones with microphone
• Audio equipment linking top teacher with class
• Earphone holder
• Assistance for listener absolutely determined to get husband for first daughter
• Hands-free accessory
• Telephone operator's wear
• Phones boss, determined
• Audio equipment provides these awful commercial breaks
• One covers the ears as commercials interrupt the opera in the middle, horribly