Wireless Portable Karaoke Speaker Enliven every party with style with Naxa’s Wireless Portable Karaoke Speaker (NDS-1211). 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 to tap into your local radio stations. Comes with a built-in MP3 player that supports both USB and SD memory cards. Easily portable with a telescoping handle and trolley wheels.