A. Support external accompaniment input: It supports external accompaniment input and has built - in preset warm - up effects, auto - tuning effects, pitch - changing effects, and strong reverb effects. B. Ten modes: Use ten modes under different conditions to create a suitable atmosphere for street performance scenarios. C. One - key tuning function: Make singing relatively easier. D. DSP audio chip: It can intelligently adjust audio segments, making the audio signal in the sound card clearer and more stable, and the sound output more pleasant. E. Plug - and - play: No debugging is required, and the effects can be achieved with one key. Product type: Sound card Interface: USB Supported channels: 2 channels Chip: DSP Audio support: EAX 4.0 Material: ABS Color: Black Dimensions: 130 x 106 x 26 mm Package contents: 1. One sound card 2. One charging cable 3. One live - streaming cable 4. One accompaniment cable Only the above contents are included in the package, and no other products are included. Note: Light reflection and different monitors may cause slight differences between the item color and the actual object. A measurement error of +/- 1 - 3 cm is allowed.