Here are the possible solutions for device for amplifying sound clue
Answer
Clue
Relevancy
resonator
Clue
Device for amplifying sound.
Definition
a resonating body or device for increasing sound
maser
Clue
Amplifying device
Device amplifying electromagnetic waves
Amplifying devices
Definition
a device used to amplify long-range radar and radio astronomy signals
lasers
Clue
Devices amplifying light waves
Definition
LASER, a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium
masers
Clue
Devices for amplifying electromagnetic waves
Definition
MASER, a device used to amplify long-range radar and radio astronomy signals
