Fully Functional Sound Mixer- The New Design Sound Mixer Contains Almost Of The Common Functions Of Broadcast. Such As Sound Mixing, Treble,Mid Bass Adjustment, Noise Reduction, Accompany, Dodge, Voice-Change, Eliminate Original Voice From The Song, Etc. Also Contain 8 Sound Modes, 16 Sound Effects And 4 Voice-Change Effects Goddessfemale,Male,Baby,Monster. The Sound Mixer Has Bt Wireless Connection Function.