Extremely lightweight and compact, the HD 100 can be folded together when not in use. Sennheiser sound quality delivers a thoroughly satisfying listening experience with powerful bass response and ambient noise reduction.

Impedance	26 Ω
Frequency response (Headphones)	18–18,000 Hz (-10 dB)
Sound pressure level (SPL)	110 dB SPL @ 1 kHz, 1V RMS
THD, total harmonic distortion	< 0.5 % (1 kHz, 100 dB SPL)
Ear coupling	On-Ear
Jack plug	3.5mm angled plug
Cable length	1.4 m
Transducer principle	Dynamic
Weight	113g
Acoustics	Closed