From the Philips power flosser collection. N/aup to 180% more effective than floss for healthier gums. Quad stream tip-creates four-wide streams of water for a thorough clean between the teeth and along the gum line. Pulse wave technology-gentle pulses of water guide you from tooth to tooth so that you won't miss a spot. Whisper quiet design-engineered for a discreet clean, so you get great results without disturbing others.