Rock out with your heart out using the Karaoke Party Speaker. Bluetooth wirelessly streams audio to speaker. Auxiliary and USB inputs plays music files and non-Bluetooth devices. Built-in stunning light display adds fun to the performance. Lights workin time with the music for a real party atmosphere. Built-in smartphone/tablet holder makes it easy to sing along with lyrics. 4 Voice changer effects. Volume and Echo control. Built-in rechargeable battery. 10W Power output. Frequency response: 150Hz-20kHz. Includes 2 Microphones.