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.) Package size: 13x6x1cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) Sound Quality + 70%,Built-in advanced digital audio chips , fast access to audio data,stronger sound performance , improved sound quality 70%. C-type To 3.5mm Audio Adapter, Nylon Woven AUX Audio, Car Audio Headphones - Black Aluminum Housing part adopts aluminum alloy material effectively avoid the oxidation effect. Material: weave