Wireless Karaoke & PA Mixer System – Includes 2 Wireless Microphones & 1 Mini Mixer – Bluetooth, Aux, Optical Input – Optical & Aux Output. Easily Turn Any Speaker or Amp into a Karaoke or PA System Compatible with Any Speaker or Amp with 1/8″ Aux-In or Optical Input Kit Includes 2 Wireless Mics + Receiver/Mixer Up To 100 Feet Range (Clear Line of Sight) Works with Wireless Mics (2 Included) or Wired Mics (Not Included) Input Music to Mixer from Bluetooth, 1/8″ Aux, or Optical Easy Mixing of Mics, Reverb, Bass, and Treble.