Product Comparison: JVC HAFX1X vs Sennheiser CX 300 II

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General Specifications
CX 300 II
About the Product
The HA-FX1X inner-ear headphones feature a 10mm diaphragm with neodymium magnet and Extreme Deep Bass Ports deliver ultimate bass sound. Superior sound isolation is acheived by including three different size silicone ear pieces.
Offering a powerful, bass-driven stereo sound with greater clarity and improved dynamics over standard earbuds are the CX 300-II ear-canal phones. The various sizes of ear adapters (S/M/L sizes) provided in the package allow for a customized fit as well as exceptional noise blocking capability.
Size & Weight
6.3 in.
7.9 in.
1.97 in.
3.9 in.
0.79 in.
7.9 in.
6.38 oz.
3.52 oz.
What customers say about "Size & Weight"
JVC HAFX1X Xtreme Xplosives In Ear Canal Earphones
  • The bit you place into your ear however is exceptionally well built with a good weight, they do stick out of your ear a bit more so it might look a little awkward.
  • The earphones are DEFINATELY worth their weight in gold, they are absolutely amazing!!! Lightweight and compact.
  • Not as small as the picture gives the impression of. Light weight, give a fair acoustic seal but not the best I've ever had.
  • The weight of the earpieces makes them difficult to keep in my ear, even with the different sized ear buds, and I nearly maimed myself trying to open the ridiculous packaging.
  • Slight weight to them - i tried jogging with them and they kept falling out, and no mic.
Headphone Fit
Cord Length
3.93 feet
3.93 feet
Built-In Microphone
Sound Isolating
Water Resistant
Extreme Deep Bass Ports, 10mm Neodymium Driver, Rubber protectors, Superior sound isolation, Gold-plated 3.5mm jack, Special hard carrying case included, S/M/L silicone ear-pieces included
High-quality dynamic speaker systems for bass-driven stereo sound and durability, Personalized fit in the ear canals functions as an earplug and high-quality speaker, Customizable ear adapter system achieves the perfect fit, Asymmetrical cable reduces tangles and cable clutter
What customers say about "Features"
JVC HAFX1X Xtreme Xplosives In Ear Canal Earphones
  • The anti-tangle cord is excellent and really works and the cord is sufficiently long enough to reach my trouser pockets with some slack.
  • They are extremely well built, the cord is thicker than normal so less likely to tangle and twist and the sound they produce is superb.
  • The cord is brilliant - very long and it doesn't get tangled like others I have had.
  • I wish they had a microphone to answer calls on the phone but even without it they're awesome.
  • This does not come with a mic or volume controls so it isn't recommended for long usage as you cannot answer calls without taking out your phone and holding it close to you.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
2 year(s)
Other Information

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