A Headset is combined equipment that consists of headphones and a microphone or a headphone and a microphone. The device is designed for hands free operation. It is commonly used for field activities where the user has to work with hands on other thing but holding handset for communication. Most of the headset only has one speaker like on the telephone hand set; it enables the other ear to hear for direct communication. Tactical team on the military forces usually use headset for radio communication. The headset has to be able to deal with extreme condition like rain or hard bumps during the operation.

The Swat Headsets are used for military purposes, it consist of a headphone and a microphone that enables the user to communicate using the headset and listen to direct communicate with unoccupied ear. The military headset is intended for tactical field communications. It is usually occupied with two ways radio. The field headsets should be able to deliver clear audio signals even in the noisy area. The headsets also have to be able to protect the user from high impulse noises like gunfire or other loud audio signal. The headset design has to be comfortable due to the long term usage on the extreme condition filed.