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Sennheiser CX 300S In-Ear Headphones in Red


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Delivery within 3 working days

  • Ambient Noise Isolation
  • Built-In Mic and Remote
  • Storage Pouch Included
  • Available in Black and White

Get 5% off these headphones!

5% Off Headphones

Online offer only - discount is automatically applied at the checkout. 

Excludes open box, ex-display and refurbished headphones. Cannot be combined with other promotions.

  • SEN-CX300S-RED
Boost your sound with Sennheiser’s CX 300S earphones which offer amazingly detailed sound... more
Product information "Sennheiser CX 300S In-Ear Headphones in Red"

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.

Product Specifications

Impedance  18 Ω 
Frequency response (Microphone)  100 – 10,000 Hz (-10 dB) 
Frequency response (Headphones)  18–20,000 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  3.5mm angled 
Cable length  1.2m 
Transducer principle  Dynamic 
Weight  12 g 
Pick-up pattern Omni directional  Omni directional 
Microphone sensitivity  44dbV/Pa 
Acoustics  Closed 
Sensitivity  118 dB SPL @ 1 kHz, 1V RMS 
Earpad size XS;S;M;L 
Ear pad material Silicon rubber 

What's in the Box?

  • CX 300S earphones
  • Ear adapter set
  • (XS/S/M/L)
  • Storage pouch
Headphone Type: Wired
Headphone Design: In Ear
Product Type: Headphone
Connectivity: 3.5mm Plug/Wired
Colour: Red
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