Sennheiser CX 300S | In-Ear Headphone - OnWard PH

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Sennheiser CX 300S In Ear Headphone

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Meet the Sennheiser CX 300S

The CX 300S earphones present detailed sound with enhanced bass thanks to Sennheiser transducer technology. The in-ear design reduces ambient noise, and the included set of ear-adapters guarantees an individualized fit. A Smart remote enables you to pause music and take calls across all devices. The 18-ohm transducers provide exceptional compatibility with smart phones, tablets and computers. Stay connected and improve your listening experience with the CX 300S!


  • 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


  • Impedance: 18 Ω
  • Frequency response: 17–21,000 Hz (-10 dB)
  • THD, total harmonic distortion: <0.5 % (1 kHz, 100 dB SPL)
  • Jack plug: 3.5 mm angled
  • Transducer principle: Dynamic
  • Frequency response (Microphone): 100 – 10,000 Hz (-10 dB)
  • Sound pressure level (SPL): 118 dB
  • Ear coupling: Ear-canal
  • Cable length: 1.2 m
  • Weight: 12 g

What's in the box

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

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