Professional telephone headset: adjustable headband fit any head size. Ideal for who prefer to leave one ear open, for Call Center Service, Telephone Counseling Services, Insurance, Hospitals, Banks ect.
Compatibility: Compatible with Polycom VVX Series, CX Series and Soundpoint Series, Allworx, Mitel 5320 5320e 5330 5330e... ShoreTel 420 480 480g 485g... Nortel + more desk phones listed in description.