Soft Dupont bristles and an ergonomic design help clean plaque in hard to reach places, Easily replaceable brush head includes a tongue and cheek cleaner, Soft rubber grip provides a firm hold and comfortable brushing experience, 2 buttons 2 songs; one for brushing in the morning, one for night, Each song plays for the dentist-recommended two minutes, Batteries are included and replaceable, Lady Gaga Singing Toothbrush - Born This Way and Teeth, SKU: ASTS010