MASINGO Bluetooth Karaoke Machine can be used by adults or children. MASINGO can be used as a portable pa system and karaoke machine. Whether you are performing solo or in a duet, the unit comes with a one wired microphone and one external VHF microphone. Karaoke machine features 6 playback modes: Bluetooth, USB, AUX, FM radio, Micro-SD, or PA portable. LED color-shifting light up ring at the front of the machine turns every party into a dance party. Built for convenience this lightweight machine is easy to transport or carry around your neck with a strap. Battery will last up to 3-4 hours providing you and your guests with ample time for fun.