1. Carefully designed to minimize the contact point with surfaces to prevent scratches on the earphone, so that the product’s life cycle is extended. 2. The earbud’s design of red, wrapped in semi-transparent gray, combines warm with cool, which makes it more harmonious. The design of traditional Chinese red and titanium gray highlights the product’s fashion. 3. The ergonomic design with two inclined angles ensures comfort without slipping even during long-time wearing. 4. Intelligent dual systems in-line control, compatible with both IOS and Android. 5. Dual metal cavities are employed to provide a stable bass.