Singing Machine Minions CD+G Karaoke System with Wired Microphone (OK-3415M) Fun Minions graphics and a Minions voice selection button bring your child's favorite critters to life. Repeat control helps your little one get into the groove Two-digit LED display. Dial controls ensure simple adjustment of music volume, microphone volume, echo control and balance control Built-in speakers for crisp sound, Wired microphone plugs in for sing-along fun. Video output lets you connect to your TV for scrolling lyrics Audio port enables connection of your compatible wired audio devices. Secondary microphone input for singing duets (second microphone not included) Front-loading CD/CD+G player, Auto voice control (AVC) button, Integrated handle for easy transport, Requires six C batteries (not included)