This electric toothbrush uses sonic vibrations of up to approximately 40,000 strokes per minute to thoroughly reach even periodontal pockets. - Model Name: DOH-03-K36D - Colors: Black/Gold - Vibration Frequency: Up to approximately 40,000 strokes/minute - Accessories: Brush head, charger - Size: Approximately 23.5cm This item is new and unopened, but there is some tearing and a dent on the box. Thank you for viewing.