inHarmony has been using these headphones since 2016 with amazing results. The best bang for the buck for sure!The HD 280 Pro is Sennheisers most significant closed, around-the-ear headphone to be introduced in years. Designed to exceed the demands of the professional environment, the HD 280 Pro boasts extremely robust construction combined with the sound quality, modular design and aggressive noise isolation that is necessary in the field. The unique collapsible design, combined with swiveling ear cups, offers maximum flexibility in any appli