This hifi display Digital Auditory Adapter to deliver clear and losslessly sound through its digital output for audiophiles and professional auditory setting. This adapter boasts a 3.5mm and connection, ensuring broad compatibility with devices like smartphones, computers, and tablets, while supporting seamlessly sound transmission. High data transmission efficiency, low transmission loss and low error rate (about 2%). Excluding electromagnetic interferences, it is stable and high in confidentiality. Small size, light weight, good flexibility and windability, and simple installation and low cost.