an electrical device that converts one form of energy into another

electro-acoustic transducer that vibrates to receive or produce sound waves

an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable

electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear

electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

device for converting sound waves into electrical energy

electro-acoustic transducer that vibrates to receive or produce sound waves