Sony says its XBA-NC85D noise-cancelling earphones are the smallest and lightest in the world. But size really isn't everything, and their mediocre performance and gigantic $500 price tag are a major ...
Sony introduced its XBA line of earphones in early 2012. The "BA" stands for "balanced armature," but that's about the only common thread within the wide-ranging collection, which includes the Editors ...
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