Singing Machine SDL9030DB Carnaval Karaoke System 100 Watts Peak Power, 2 Wired Microphones, 8 GB Flash Drive w/ Built-in Karaoke App, All-Digital Karaoke Systems Bluetooth, Built-in powerful speaker, Collapsible Handle, Echo Control HDMI Output Jack, Hi-Def Karaoke Video, Interactive Wired Mic-Remote Control, Line-in Monitor, Multi-colored LED Dome Lights, Music Synchronized 3D Lighting Effects, Portable Sound System w/ Wheels Rechargeable Battery, SD Card Slot, Speakers w/ Tweeters & Subwoofer, User Interface