Sennheiser HD 400S Over-Ear Headphones

The HD 400S features a one-button smart remote conveniently located on the cable, which allows you to control music and take calls with ease, and the sturdy folding design makes these headphones durable and compact enough to be taken anywhere. Sennheiser dynamic drivers deliver a well-extended sound response with dynamic bass.- Renowned Sennheiser sound quality for a unique listening experience.- Built-in microphone and remote for call and music control.- Closed-back around-ear headphones reduce unwanted background noise for your comfort.- Lightweight, foldable headphones for easy on-the-go storage.   Impedance        18 Ω     Frequency response (Microphone)        100 – 10,000 Hz (-10 dB)     Frequency response (Headphones)        18–20,000 Hz (-10 dB)     Sound pressure level (SPL)        120dB (1kHz/1Vrms)     THD, total harmonic distortion        <0.5% (1kHz/100dB)     Ear coupling        Over-Ear     Jack plug        3.5mm angled     Cable length        1.4m     Transducer prin