Zeiwohndc Professional Sound Converters Headphone Amplifiers CS43131 Chip

Double CS43131 high-performances chip were used, Chip CS43131 with 130dB dynamic rate,true balanced output; Equipped with three sound output interfaces: 3.5mm stereo, 2.5mm balanced, and 4.4mm balanced; PlugS and play compatibility Connecting directly to your smartphone with USB Input, and works with balanced 4.4mm or 3.5mm headphone plugs;