The CX 1.00 has been replaced by the CX 100.Sennheiser’s CX 100 earphones offer a powerful sound experience with a deep and punchy bass. The ultra-small design guarantees excellent comfort while the included set of ear adapters in four different sizes (XS, S, M, L), ensures effective noise blocking that will really let you feel the beat.

Renowned Sennheiser sound quality for a unique listening experience.
Convenient compact design for easy on-the-go storage.
Ergonomic in-ear design for ambient noise isolation and undisturbed.
Ear coupling Ear-canal
Colour black - white
Transducer principle Dynamic
Acoustic principle Closed
Frequency response 17–20,000 Hz (-10 dB)
Nominal impedance 28 Ω
Sound pressure level 119 dB SPL @ 1 kHz, 1V RMS
THD, total harmonic distortion < 0.5 % (1 kHz, 100 dB SPL)
Jack Plug 3.5 mm angled
Cable length 1.2 m
Weight 10 g