The Plantronics Duoset Headset with convertible over the ear piece is unlike any other. These headphones allow you to wear them any which way you want- over the hear, behind the head, over the ear and you can choose which ever ear is more comfortable for you. Two options of microphones- voice tube or noise cancelling. With the voice tube microphone, you get perfect placement every time, but with the noise cancelling microphone- you guarantee perfect quality hearing every time with no background noise. The T-Pad headband design is ideal for the ultimate in comfort and perfect placement of the headphones of your head so there is no slipping.