Plantronics P171N DuoPro Polaris Convertible Style Noise Cancelling Headsets Feature:

Convertible design can be worn as a headband or over the ear headset
Extremely lightweight
Designed to withstand rigorous call center use with all-day comfort
Anti-twist boom ensures perfect microphone placement
Double-T headband distributes weight above both ears
Looped wire earloop means no sharp ends to push out
Industrial strength with stylish design
Electronics are in the Quick Disconnect, moving the weight away from your ear