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Item#: 9SIA1J20U46444

Sennheiser CX300II Binaural Headphone/Headset

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  • 3.94 ft Cord Length

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Sennheiser Precision CX 300-II Earphone

Offering a powerful, bass-driven stereo sound with greater clarity and improved dynamics are the CX 300-II Precision Black ear-canal phones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a personalized fit as well as a high passive attenuation of ambient noise. Also, the asymmetrical cable design ensures a high wearing comfort as you listen on the go.


  • High-quality dynamic speaker systems for powerful, bass-driven stereo sound
  • Excellent fit in the ear canals and high attenuation of ambient noise (ear adapters in different sizes included)
  • Convenient carrying pouch included
  • Optimized for MP3, iPod, iPhone, CD players and portable gaming systems (iPod and iPhone are trademarks of Apple Inc. registered in the U.S. and other countries)
  • Asymmetrical cable
  • Two-year warranty


Wearing Style Ear-canal
Impedance 16Ω
Frequency Response (Headphones) 19 - 21,000Hz
Sound Pressure Level (SPL) 113dB
Cable Length 4ft (1.2m)
Transducer Principle Dynamic

Learn more about the Sennheiser Electronic corp. CX300II

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the Sennheiser Electronic corp. CX300II

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