The Plantronics H141 Duoset convertible headset could be worn over-the-head or on-the-ear. This Plantronics H141 classic convertible headset that gives users flexiblity to change the headset to their changing needs. If you need stability because calls are heavy, switch to over-the-head. If the environment is less demanding, switch back to on-the-ear. Both forms are lightweight and comfortable with superior sound.