Sennheiser IE 80 vs IE 80S: mainly in sound quality and appearance

Sennheiser IE 80S headphone is a update of Sennheiser IE80. Recently, many friends have come to ask me, ask Sennheiser IE80 and IE80S in the end what is the difference, the difference is how big, today I will sum up.

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https://www.gearbest.com/blog/new-gear/sennheiser-ie-80-vs-ie-80s-mainly-in-sound-quality-and-appearance-7913