You might recall that we mentioned V-Moda’s Crossfade 2 Wireless Codex Edition was engineered with Qualcomm aptX audio codecs for better audio quality. Audio codecs are devices or computer programs that encode (compress) or decode (uncompress) audio file formats.
Because of these codec capabilities, you can listen to uncompressed audio files that retain 100% high-fidelity stereo sound instead of regular compressed mp3 files. As the cherry-on-top, because of the over-ear cups of the Crossfade 2s, you get noise isolation from the passive noise canceling.