One key difference between professional and consumer headphones? Many consumer models use EQ presets to artificially sweeten the sound. But as you might expect from headphones that carry the AKG name, K 540 semi-open hi-fi headphones deliver the lifelike, flat response voicing that music professionals insist on: you’ll hear your favorite music the way your favorite musicians intended for it to sound. With a lightweight design and 2D axis folding mechanism, the K 540 headphones make it easy to enjoy realistic hi-fi sound anywhere.