Headphones

Headphones, also known as earphones, stereophones, headsets, earsets, stereosets, binaurals, binaudials, binauros or binaudios or simply biaurals, biaudials, biauros or biaudios, are electronic speaker that people wear over their ears. They let people hear sounds on many types of devices, including MP3 players, mobile phones, and computers. Headphones come in many different sizes. Earbuds are tiny headphones put into the ear.^[1] Headphones typically use small plugs for connection. Some use Bluetooth connections for easier listening without a cord.^[2]

1970's headphones

Earbuds

Wireless earbuds

Deafness and other hearing problems can happen when listening to headphones with a high volume for a long time.^[3][4]