1. Built-in digital audio decoding chip support up to PCM 32bit/384KHz 2. Built-in audio decoding chip support DSD 64/128 audio source hard decoding (DoP mode) 3. Built-in 600Ω dynamic adaptive chip, can work with 16~600Ω headphones 4. Can convert the Type-C interface of Android mobile phone, tablet, Windows 10 PC into a 3.5mm headphone jack(require the device type c support has audio output feature) 5. With an extra USB A to USB Type C adapter, it will work as an external high end USB audio card for you Windows 10 PC (not support Windows 7 or earlier) Codec: ESS ES9318 Sound Resolution rate: up to 384KHz / 32bit DSD hard decoding (DoP Mode): DSD 64/128/256 Output: 180mw@32ohm Output voltage: 3.3v-5v Output impedance: 600ohm SNR: +130dB dnr128 THD+N: Less than 0.000496 Frequency Response: 10~20kHz mic:no Colour:silver Material:Metal Size:Length: about 11cm Package Contents: 1 x USB Type C headphone amplifier 1 x USB Adapter Only the above package content, other products are not included. Note: Light shooting 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.