DAP Build & Design
The X3II has a rectangular design and it is black in color. Its housing is made of CNC aluminium alloy. On the front, there are the screen and back/settings/play/pause/next/previous buttons. At the left side, there are the switch on/off button in red color, volume up/down buttons (there is a dot on the volume up button) and Micro SD slot. At the bottom of the X3II, there are USB Type C charging port, 3.5mm line out and 3.5mm standard headphone output jack. The back of the X3II shows the brand name.
The Xduoo X3II has 10 sections of EQ & 18 kinds of sound effect and it can be used as a standalone digital analogue converter (DAC). It supports line out and USB audio output. In addition, it utilizes Bluetooth 4.0 bi-directional transmission. With the HiBy link, the X3II can be controlled through the mobile phone and there is convenience of wireless.