I have a telephone headset. It is blue and you can answer a call or pause something on it. This thing is going to be useful when I need to hear something when people are talking. This phone looks like the phone they used long back but instead they have a dial, mine does not have a dial because it is a headset and you use headsets when you need to haer something.When there is something that is to loud and you need to hear something or someone. For example, My mom was talking on the phone. She was cooking and talking. She would need headsets to listen to the phone when someone is talking on it.