There are many different headsets on the market that are used for transcription today. You have to make sure that you choose a headset that has a stereo connection instead of a mono connection when using the headset with a computer. Computer sound cards are only designed to work with stereo equipment. If you plug a mono plug into a stereo sound card you will only get sound from one ear. Mono plugs have to be used with mono interfaces to get sound out of both ears. Many of the older cassette transcription machines utilize mono interfaces. If you are using some older tape machines than mono headsets are what you should look for. If you are using a computer for listening to dictations for transcription then stereo or USB connections are what you want.
November 23, 2010