Koss KSC75

The clip-on that embarrasses headphones ten times its price — a cult object of the measurement crowd. Titanium-coated drivers hang from ear clips: open, airy, and genuinely quick for pocket money.

Zero isolation, zero bass thump, zero pretence. It is fun per euro, and the lifetime Koss warranty means the fun is indefinite.

Wear them at a desk, on a walk, over a cap — anywhere sealing yourself off is not the goal. If you need thump or privacy, look elsewhere on the shelf.