Amplifier
Unit that contains most of the controls and adjustments for headset operation.

Binaural
An adjective used to describe a headset that consists of two earpieces.

Boom
The microphone that transmits your voice from the amplifier to the other person.

Cordless Headset
A type of headset that does not require a cord to convey sound between the headset and telephone. Cordless headsets allow users to talk without being right by a telephone--although they usually require the user to return to the phone in order to dial, pick up a call, or hang up.

Ear Loop
An over-the-ear headset design that consists of an earpiece attached to an oval loop. This loop is then fitted around the ear. Usually, ear loops of varying sizes are included to accommodate different size ears.

Earpiece
The mini-speaker through which a caller's voice is conveyed. An earpiece can be designed to rest either directly in or against an ear.

Monaural
An adjective used to describe a headset that consists of one earpiece.

Mute
Button that stops transmission of your voice to the person on the other end of the line.

Noise Canceling
A headset feature that reduces the amount of background sound that is conveyed from the headset user. This feature is particularly helpful in noisy environments, like telemarketing call centers, where multiple people are talking at the same time.

Quick Disconnect
Feature that allows you to disconnect the headset cord from the amplifier. This means that you do not have to remove the entire unit each time you need to leave your desk.

Voice Tube
A thin plastic tube that channels sound to a microphone positioned near the side of the face. Many users consider voice tubes to be less intrusive than other types of microphones.

Wireless Headset
A headset that is designed to be used with a wireless telephone like a cellular phone or cordless telephone.