Bluetooth Playback & MP3 Playback: This karaoke machine will attach to any smart device in seconds via its inbuilt Bluetooth & Aux Inputs Inbuilt Rechargeable Battery & 10-Watt Speaker: This karaoke device has an integrated rechargeable battery that will allow you to playback music through the 10-watt speaker for up to four hours giving you a truly wireless karaoke experience Two Karaoke Microphone: Coming with two karaoke microphones this karaoke package is ideal for duets LED Lights: Moving in time to the music the inbuilt light show within this karaoke machine can be turned on and off depending on your usage Karaoke Party: Connect to your smart TV via Bluetooth as a speaker and use this karaoke to create a traditional karaoke party, use streaming services to sing along to lyrics as they are displayed on your TV Elevate Your Karaoke Experience with the RockJam SingCube RJSC02 - The Ultimate Bluetooth Karaoke Machine with Two Microphones for Unforgettable Sing-Alongs!Are you ready to