1. The device is equipped with two combined input interfaces, which can be connected to 6.35 or XLR input, and single-channel input interface. 2 channels, 24 bits, 192000hz recording studio standard, 1L+2R supports turning on or off 48V phantom power supply, 1L has low level, low-cut effect, the vocals are pure and completely transparent, and the 2R interface has HI-Z high-impedance switching Button, you can the instrument DI box with one click, making it more convenient to use. 2. The device has a loopback function, which can return signals or data back to the device. This function is mainly aimed at computers. It is a virtual wire technology and has one-click switching between monophonic and stereo function buttons. Good mono audio compatibility. The sense of space is enhanced in stereo mode. 3. The sound card is equipped with a MIX knob, which can be used to select headphone input, analog siganL and digital audio workstation siganl. The device is equipped with a 6.35MM headphone output interface 4. The equipment panel has a real-time display of the signal level meter, which can monitor the input signal source strength and gain structure, and has a monitor knob to attenuate and amplify the monitoring signal. Color: Red Material: aluminum alloy Package Contents: 1 * Sound Card 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.