Precision German engineering ensures excellent audio clarity, so you will hear every detail of your music.
One button inline smart Remote makes it convenient to play and pause music and take calls without needing to fumble with your phone.
Four sizes (XS, S, M, L) of ear adapters are included so you can get an individualized fit for personal comfort.
In ear design creates a secure fit for excellent reduction of ambient noise so you can relax and focus on the music.
Connectivity technology: Wired
Connector type: 3.5mm Stereo

Boost your sound with Sennheiser’s CX 300S earphones which offer amazingly detailed sound reproduction and enhanced bass response thanks to Sennheisers transducer technology. The in-ear design reduces ambient noise to a minimum, and the included set of ear-adapters guarantees an individualized fit with four sizes (XS, S, M, L) to choose from. A Smart remote enables you to pause music and take calls across all devices.

Built-in microphone and remote for call and music control.
Ergonomic In-Ear design for ambient noise isolation and undisturbed listening.
Tough and tangle-free cable for long-lasting listening enjoyment.

CX 300S earphones
Ear adapter set
(XS/S/M/L)
Storage pouch
Technical Data

Impedance
18 Ω

Frequency response (Microphone)
100 – 10,000 Hz (-10 dB)

Frequency response
17–21,000 Hz (-10 dB)

Sound pressure level (SPL)
118 dB

THD, total harmonic distortion
<0.5 % (1 kHz, 100 dB SPL)

Ear coupling
Ear-canal

Jack plug
3.5 mm angled

Cable length
1.2 m

Transducer principle
Dynamic

Weight
12 g

Earpad size
XS;S;M;L

Pick-up pattern
Omni directional

Microphone sensitivity
- 44dBV/Pa

Acoustics
Closed

Sensitivity
118 dB SPL @ 1 kHz, 1V RMS

Ear pad material
Silicon rubber