Infinitely variable speeds, 5 Waterpik water flossing tips, and 600ml of water capacity. Pressure Range: 10 to 90 PSI.

Pulse mode:  will generate about twice a second pulse water column (spray 0.1 seconds, stop 0.3 seconds, 0.4 seconds a cycle), can massage the gums and clean the teeth.
Worldwide voltage 100-240V.

Auto shut off in 2 mins to avoid misoperation.