Conclusion: Sennheiser makes earphones for the serious listener, and the CXC 700's audio performance and noise cancellation are both superb—but the design won’t suit everyone.
Pros: Excellent audio performance, bass response. Quality active noise reduction. Outputs audio even when noise cancellation isn’t activated, with almost no difference in audio quality. Includes “Talk Through” option and three different noise reduction modes.
Cons: Battery compartment is bulky/awkward. Uses triple-A battery instead of rechargeable option.