Sennheiser HD 100

Lightweight, foldable headphones for easy on-the-go storage.
Closed-back on-ear headphones reduce unwanted background noise for your comfort.
Impedance 26 Ω
Frequency response (Headphones) 18–18,000 Hz (-10 dB)
Sound pressure level (SPL) 110 dB SPL @ 1 kHz, 1V RMS
Cable length 1.4 m