Works with all music and karaoke apps Six Voice-Changing Effects: Echo, Male, Female, Robot, Chipmunk and Radio Multi-colored LED lights synchronize to the music Built-In speaker for a dynamic sound system Two microphone inputs for duets (one microphone included) Did anyone say Karaoke Party? Connect the Groove Mini to your TV via HDMI cables and share your CDG's lyrics on the big screen. Create fun, lasting, singable moments with The Groove Mini! The Groove Mini combines your favorite Classic features with updated vocal-changing fun! Up your singing game with 6 fun voice-changing effects. Enjoy a light show that synchronizes to your voice. Connect your Bluetooth device and sing along to your favorite karaoke songs. Take this portable machine with you on your next road trip, tailgate, or pool party: simply add 6 "C" size batteries (batteries not included).