Aluminum Housing part adopts aluminum alloy material effectively avoid the oxidation effect. Gold-plated material，the port uses a gold plating process for antioxidant Extended Life. Onboard Listen to the Song/Navigation，High-fndelity noise-cancelling design to lossless sound quality. Sound Quality + 70%,Built-in advanced digital audio chips , fast access to audio data,stronger sound performance , improved sound quality 70%. Compatible Devices,Type-c to 3.5mm audio for easy audio connection. C-type To 3.5mm Audio Adapter, Nylon Woven AUX Audio, Car Audio Headphones - Black Material: weave Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 25g Package size: 13x6x1cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) Durable Stylish User-friendly Advanced Cost-effective Aluminum Housing part adopts aluminum alloy material effectively avoid the oxidation effect. Durable Compatible Devices,Type-c to 3.5mm audio for easy audio connection. Stylish Gold-plated material，the port uses a gold plating process for antioxidant Extended Life. User-friendly Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Advanced Package weight: 25g Cost-effective