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The QC20 version for "Samsung Galaxy Devices" is the series II version of our noise cancelling in-ear headphones whereas the QC 20 version for "Android, Windows, and Blackberry" would be the series I of this model. This would go some way to explaining the difference in price as one product is the "previous" version of the headphones. Another significant difference between the series I and series II headphones is the addition of an inline mic and remote in the latest version allowing the user to control various functions of compatible Samsung Galaxy devices. The previous version has an answer/end button and mic only. With regards to the reported incidents of some handsets having full functionality with the older version, we simply could not guarantee this level of functionality with all Android, Windows and Blackberry handsets due to the difference between different models. However it is possible that some of the functionality of the inline mic and remote would work on a handset that is not officially supported. We hope this helps - Bose Support.
Sorry, there was a problem. Please try again later.well i will say they both sound the same but the diffident for the extra $50 because the other headphone has more HD CLEAR SOUND AND GREAT BASS I LOVE HOW THEY SOUND I BOT SOME OF THOSE YESTERDAY THEY SOUND GREAT
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