Professional reverberation adjustment, large knob design, turning on reverberation can make the sound fuller and more three-dimensional. Always monitor the dynamics of the sound and adjust the live broadcast effect exclusively . Effectively filter the noise generated by AC interference, shield the external environment noise, the audio signal is clearer and more stable, and the sound is cleaner. the constraints of wires, turn on the sound card to turn on Bluetooth by default, and it prompt that Bluetooth is connected after success. Four custom buttons, long press to record your favorite music as special effects, short press to play. Intelligent control, free to use for a long time without consuming electricity, reducing waste to make live broadcast longer. Colour: Black Material: ABS Package Contents: 1 set x V90 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.