The KB ELEMENTS Karaoke Speaker with 2 wheels trolley features dual 10 inch subwoofers with 150W RMS, 2 wireless VHF microphones, echo control, and recording via USB or Micro SD. It supports microphone and guitar inputs, TWS pairing, Bluetooth, FM, AUX, and has disco lights, remote control, digital display, and a rechargeable 12V battery for portable use.