No batteries needed. Clinically proven to be twice as effective as traditional string floss for improving gum health! Proven in laboratory tests to remove 99. Massages and stimulates gums to improve circulation and keep your gums strong and healthy.
Reservoir capacity of 45 seconds+. Lightweight cordless and easy to use, the Waterpik(R) ultra cordless dental water jet makes it easy to maintain healthier gums.9% of plaque from treated areas with a 3 second application.