Built-in dual DSP noise reduction chip - There are dual DSP noise reduction chips inside the sound card to avoid the influence of current noise, ensure high quality sound, Reverb (ECHO) makes your voice more charming. Multiple effect and voice change mode – 8 levels of electric sound and 16 different sound effects. These sound effects can be adjusted in 6 different modes. You can adjust the reverb size, microphone volume, treble and bass, recording volume, music volume as well as the monitor vol