One of the highest efficiency planar phones in the world! HIFIMAN’s newest HE400S sounds terrific on your smartphone or most any portable audio device.HE400S delivers all the lifelike clarity, detail, extended bass and wide sound stage that audiophiles have come to expect from HIFIMAN.Innovative headband and specially designed ear pads for remarkable comfort allowing you to enjoy your music for hours on end.Dynamic headphones utilize conductors that vibrate in limited areas of the diaphragm. Result is that a large percentage of the diaphragm cannot be directly driven by those conductors.Planar headphones have conductive layers over almost all of the diaphragm. Evenly driven by these conductors, result is significantly lower distortion than conventional dynamic headphones.

• Frequency Response: 20Hz – 35KHz
• Sensitivity: 98dB
• Impedance: 22 Ohms
• Weight: 350g
• Cable Length: 1.5 m
• Wired Connectivity: 3.5mm/6.35mm
• Compatibility: Universal
• Wearing Style: Over-Ear
• Grill: Open-Back
• Easy to Drive
• Superb Hi-Fi Quality
• Long Hours of Comfortable Listening