Sennheiser (508316) Sennheiser SC 135 USBOne-ear headphone with 3.5mm jack connector (4 contacts) + USB-A adapter with connection control, microphone with NC noise cancellation, wide frequency response.
Certified to coop....
Sennheiser (508316) Sennheiser SC 135 USBOne-ear headphone with 3.5mm jack connector (4 contacts) + USB-A adapter with connection control, microphone with NC noise cancellation, wide frequency response