Pro Results - The world’s best smart toothbrush just got better. Black Series Pro includes state-of-the-art technology including features like an industry leading 50,000 vibrations per minute ultrasonic motor, 5 unique modes including modes for whitening teeth and improving gum health, and built-in smart timers to help you brush efficiently.  Advanced Technology – 4 unique modes including “Clean”, “Soft”, “Whiten” and “Massage” ensure complete oral care and not just clean teeth. Enhanced features like a 40,000 VPM ultrasonic motor, 30 second notification timer, 2-minute auto timer, and IPX7 waterproof rating make AquaSonic as powerful as it is sleek. 6 ProFlex Brush Heads Included - precisely angled ProFlex brush heads include bristles that are firmer in the center and softer on the outside. This means you can be tougher on surface stains while remaining gentler on your gums at the same time. Each brush head lasts 4 months so you can forget about expensive refills for 2 years. What's in the Box – 1 AquaSonic Black Series Pro Electric Toothbrush, 1 UV Sanitizing Wireless Charging Dock, 1 Premium Travel Case, 6 ProFlex Brush Heads, Instruction and Support Manuals.