Enliven every party with style with Naxa’s Wireless Portable Karaoke Speaker (NDS-1510). The sleek, modern 15" subwoofer with multi-color LED light effects fills the air with a reverberating high-quality sound of up to 4,000 watts. Affording you plenty of versatility in usage, this speaker stack comes with a 6.3 mm karaoke input and a 3.5 mm auxiliary input. Customize your sound as desired with 4 control levels, including the master volume, treble, bass, and mic volume. Simply connect wirelessly via Bluetooth with your external media devices. Take advantage of the FM radio tuner and a built-in MP3 player that supports both USB and SD memory cards. Easily portable with a telescoping handle and trolley wheels.