A newly released pair of Sennheiser’s Orpheus headphones which could be the best ever made, is alleged to cost $50,000 (£32,400, N11m).

The Orpheus headphones have 6,000 individual components including gold-vapourised ceramic electrodes, platinum-vapourised diaphragms, and Carrara marble amplifier housing from Italy.

Only 300 pairs were ever made. When you turn on the power on the new Orpheus, chromium-plated brass knobs extend from the amplifier housing and the eight quartz-encased vacuum tubes rise from the base and start to glow.
And there are eight digital-to-analog converters to get the best sound from low-quality music streams.
Sennheiser says the headphones will be produced from next year, with a limited run of 250 produced each year.