1. Carefully design to minimize the contact point with surfaces to prevent scratches on the earphone so it can extend the product life cycle. 2. Ergonomic design of two inclined angles ensures comfort without sliding even for long-time wearing. 2.Metal housing has a taper and a cylinder, generatrix of the taper is more inclined than the line connected by the upper end of the taper and the far end of the cylinder, to protect the conical surface of the taper from being damaged. 3.Intelligent dual systems in-line control, compatible with both IOS and Android. 4.Dual metal cavities s are introduced to offer stable bass. 5.Design of rose gold and traditional black highlights fashion.

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