0% Recommend this product (0 of 1 responses)
By Ryan W.
I've been using the Challenger custom molded earphones for...
May 7, 2015
I've been using the Challenger custom molded earphones for about 8 years now and after a few wire harness failures, I decided to make an upgrade to CR10's. The CR10's sound significantly better - the frequency response especially on the low end is far superior to the Challengers. Both have similar noise reduction qualities but if you are a music enthusiast you will certainly appreciate the CR10. Plus you get a very nice watertight case with the CR10's. Note that the CR10 material is much stiffer (less flexible) that than Challenger so the CR10 may not be as comfortable to some users but doesn't seem to be an issue to me. Side note: I use these when motorcycle riding, airline travel, and in auto racing.