Who created the first earphone?

The first earphones were created by Thomas Edison in the late 19th century. He developed a device called the "carbon button transmitter," which was used in early telephones. However, the first true earphones, designed for listening to music, were developed by Nathaniel Baldwin in 1910, who handcrafted them in his home and later patented the design. These early earphones laid the groundwork for the evolution of modern headphones.