Many earphones have different soundport nozzles (the part the tip goes onto) and these numbers represent our different inner core sizes ranging from small to big. An earphone is only compatible with one core size. We actually bring in every earphone listed on our website and our engineers put the earphone through testing to determine which core size is the best compatibility. Use our Fit Finder to see which Comply™ tips fit your earphones.
Modified on: Fri, Aug 31, 2018 at 10:52 AM
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