The i-Run team says
Technologies
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FlipHook
This earpiece fastening system allows you to wear the earbuds in or behind the ear.
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FlexSoft
Ergonomic and comfortable design.
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TwistLock
Foldable stabilizer with an "ear hook" design that ensures your earphones do not fall out, even during your most active moments. Technology that provides a reliable and comfortable fit. When you take them off, the earphones automatically turn off even if you do not place them back in the charging case.
