HIFIMAN HE400SE Stealth Magnets Version Over-Ear Open-Back Full-Size Planar Magnetic Wired Headphones for Audiophiles/Studio, Great-Sounding, Stereo, High Sensitivity, Comfortable, Sliver

What is a planar headphone? What are its benefits over other designs? Planar headphones feature conductive layers that cover nearly the entire diaphragm, resulting in significantly lower distortion than conventional dynamic headphones.
Acoustically Invisible Stealth Magnet Unlike the sound waves created by a conventional magnet, the special shape of Stealth Magnets enables the waves to pass through the magnets without generating interference. HIFIMANs advanced magnet design is acoustically transparent, dramatically reducing wave diffraction turbulence that degrades the integrity of the sound waves. The reduced distortion yields pure sonic output that is accurate and full-range.
Durable Connections The headphones drivers are protected by a newly designed casing for enhanced durability and protection from the elements. A dual-sided high-performance 3.5 mm cable is packaged with a 6.35 mm adapter for maximum compatibility with a wide range of devices.
The HE400SEs high sensitivity makes it the perfect match for low-voltage sources, including portable hi-res. audio players.
Maximum Comfort for Hours of Listening Pleasure Thanks to its newly designed adjustable lightweight headband, the HE400se remains cool and comfortable for hours, even in excessively warm weather.