1.      In-ear Earphones:

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In-ear earbuds have a silicone ear tip. That part goes into your ear canal. The ear tips of in-ear earbuds are bendable and flexible. In-ear earbuds go deeper into your ear than semi in-ear earbuds.

2.      Semi In-ear Earphones:

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The semi in-ear earbuds (also called half-in ear earphones) are already made in such a way that they fit in your ear. Semi In-ear earbuds lie in your ear close to your ear canal. They are therefore harder and they do not have an extra silicone attachment.