2 years international warranty
30 days free return
CX 300S
CX 300S
CX 300S

CX 300S

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Article number: 508593

Product Description

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.

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

Key Features

  • 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.

What's in the Box

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

Customer Reviews

Based on 36 reviews
Budget earbuds with good quality

Great for travelling and remote working, great quality and comfy for the price

Super comfortable phones for a great price.

Great quality sound, good sound isolation without blocking out all noise. Very, very comfortable and really good value.

Great headphones

They sound really good and fit well. I still like headphones with a cable and these are perfect. Very happy with them!

Never received à this day :)

Never received à this day :) UPS sucks

Wonderful in-ear headphones

It's the third pair of Sennheiser headphones I buy, one for me and 2 for my kids and we all love them. I personnally own the older CX 5.00G, while my kids have the CX 300S. Build quality, sound and comfortability are amazing. The only drawback is that the cords carry noise to the headphones while walking, so maybe not the best sports heaphones.