Featuresr it support cdla all digital lossless audior dual back cavity structure design enhance the bass while ensuring less distortionr support hi res 96k24bit output let you enjoy the most authentic musicr dupont special diaphragm technology to optimize tuner semi in ear design to effectively avoid stethoscope effect comfortable to wearr built in letv custom made hifi independent decoding chipr fashion flat cable design no windingr 100 gold plated type c plug reduce the loss of