Choose from 15 preloaded children's songs like "Itsy Bitsy Spider" and "Old MacDonald" to sing along to; drop out the lyrics with the press of a button to sing karaoke style to favorite tunes Sing with color-changing lights flashing from the microphone; hear encouragement and applause after you perform Expand the fun with BLUETOOTH wireless technology to connect to your own music; music player not included Try out five silly voice effects like reverb, echo or robot sounds Intended for ages 2–5 years; requires 3 AAA batteries; batteries included for demo purposes only; new batteries recommended for regular use