Arm & Hammer Tooth Tunes Soft Toothbrush with Songs by either Cody Simpson, Big Time Rush, or Selena Gomez: * Plays "All Day" by Cody Simpson, "If I Ruled the World" by Big Time Rush, or "Round & Round" by Selena Gomez * 2 minutes of music encourages longer brushing * Sound vibrations stream from the bristles through your teeth so you hear the music in your head * AAA batteries included