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Headsets are listening devices, which also called earphone. They can be worn in the ear, on the ear, or around the head of users. They convert an electrical signal to a corresponding sound in the user's ear. Bluetooth Headset is the main stream of wireless headset in the market, the working distance is 100 meters. And the sound effect is much better than other types of wireless headsets.

The overall dynamics of the hearing aid industry has been transformed by the evolution of digital technology. With new innovations cosmetically attractive mini-instruments have been provided to hearing impaired people, which have proven to be highly efficient in performance.