Good compatibility, quick response and more stable compatibility with most mainstream type-c interface devices on the market. Interface features: not only outstanding appearance, - interface design, slim interface, can be used to DisplayPort signals, support 4K UHD image transmission, and better electromagnetic interference and interference mitigation characteristics. decoding chip: more complete and purer audio signal transmission. 31993 and cx31998 have the same series of chips, which support the sampling rate of 384khz/32bit. The sound quality is good, and it is compatible with 95% mobile phones, win10 and for computer systems on the market, and supports the functions of wire control and network voice. It is a true hifi-class audio decoding chip. Interface: TYPE-C to 3.5mm Sampling rate: 32bits/384KHz Signal to noise ratio: 128db +N: 0.0033% DSD: 64/128(PCM) Color:As Shown Material:Plastic+Metal Package Contents: 1 * adapter 1 * USB head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.