The Pursonic Rechargeable Oral Irrigator delivers water pressure at 40-80 PSI with 1700 pulses per minute. Features an Auto shut off feature that turms off after two minutes when cycle is complete. Removes bacteria deep between teeth and below the gum where brushing and flossing can't reach. Massages and stimulates gums to improve circulation and keep your gums strong and healthy. Ideal for cleaning around dental bridges, braces and crowns. Ergonomically designed handle and 360 rotated nozzle, lets you easily control water flow to reach all areas of the mouth.