Sennheiser HD 400S Closed-Back Dynamic Headphones. Sennheiser signature sound with deep bass and clear treble. Closed-back design for noise isolation. Frequency response 18Hz - 20kHz. Impedance 23 Ohm - easy to drive from any device. Inline microphone and one-button remote. Foldable design for portability. Detachable 1.2m cable. Lightweight at 220g. Compatible with smartphones, tablets, laptops. 2-year warranty.
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