Support external accompaniment input: Support external accompaniment input, built-in preset preheating effect, automatic tuning effect, pitch shifting effect and strong reverberation effect. 10 : Use 10 under different conditions to create a good for the roadshow scene. One-key tuning function makes singing easier. The DSP audio chip allows you to intelligently adjust the sound segment, so that the audio signal in the sound card is clearer and more stable, and the sound output is more pleasing to the ear. Plug and play, no debugging, one key effect. Type: sound card Interface:USB Support channel: 2 channel Chip: DSP Audio support: EAX 4.0 : ABS Colour: Black Size: 130 x 106 x 26mm Package Contents: 1 x Sound Card 1 x Charging Cable 1 x Live Cable 1 x Accompaniment Cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.