The open-plan office is a proven way to save on square metres and destroy concentration. The air conditioning hums, a meeting is being held in the corridor, and someone eats a carrot so loudly it carries to the other end of the floor.
Headphones won't fix office design, but they fix its consequences. The VMK25.2's noise cancelling removes the steady hum, the microphones handle meetings so the other end actually hears you, and the 55-hour battery means the charger can stay home for the entire working week.
And when a colleague appears next to your desk, transparency mode switches on with one press. The headphones stay on your head, and nobody gets offended.
If the budget is tighter, the VMK15 does the same job in a smaller size for 139 euros. F.A.Z. Kaufkompass picked it as the test winner among 48 on-ear headphones, so it's no consolation prize.
P.S. For a student, the same recipe works in the library: headphones for studying.