With battery included. Sonic power. 2x whitening action (Whitens teeth 2 ways). Experience a whiter smile and a healthier whole mouth clean (vs. brushing teeth alone with an ordinary flat-trim toothbrush). 2x Whitening Action: Spiral bristles and polishing cups effectively remove surface stains. On/off activates vibrating bristles with the cleaning power of 20,000 strokes/minute. Tongue and cheek cleaner. Dentists and hygienists recommend replacing toothbrush every 3 months. Save Water: www.colgate.com/savewater. USA: 1-800-468-6502. www.colgate.com. Made in China.