Multi-function handle: Release button helps to easily replace the nozzle, Nozzle rotates 360 to easily treat all areas of the mouth. Water Flow on/off switch allows you to pause water flow A unique combination of water pressure and pulsations cleans deep between teeth and below the gumline where regular flossing can't reach Delivers water pressure from 0 to 90 PSI with 1400 pulses per minute. 2 minute Auto timer with a 30 second interval alert system Helps remove plaque and bacteria more thoroghly than a traditional flosser, especially deep between the teeth and below the gum line where brushing and flossing can't reach. . Safe, gentle and perfect for anyone with implants, crowns, bridges of periodontal pockets 100 240 Volt for Worldwide use. Includes 3pcs standard nozzles + 1pc tongue scraper. Master Carton Dims: 16 LBSx24"x14"x10"