1. With auto-water supply function, easier operation. 2. The inner water pipe is made from antiseptic material, clinical fluids, such as Hydrogen peroxide, chlorhexidine and sodium Hypochlorite, etc, can be used perfectly under the mode of auto-water supply system so that the performance of perio and endo is improved dramatically. 3. The handpiece is detachable and can be autoclaved to the temperature of 135? and the pressure of 0.22MPa. 4. Automatic frequency tracking ensures that the machine always works on the best frequency and performs more steadily. 5. Controlled by PC, easy operation and more efficient for scaling.