Music magic mode turns down the main voice of included songs or songs accessed through a mobile device Connects to MP3 players or mobile devices with the included Audio cable so you can play songs from your own collection Includes 6 built-in games, a voice changer that has five different voice effects, fun sound effects and eight original songs Twist the disco light 180 degrees for bright and colorful light effects that create a great atmosphere for singing and dancing Use the built-in recorder to record yourself for up to 5 minutes. Includes two microphones and an AC adapter so you can sing all day with a friend. This karaoke machine is intended for ages 5 to 9 years; 4 AA batteries required