1. LED digital display, Intelligent touch-screen control2. Water consumption, electric consumption display3. 2-3 seconds out of endless hot water4. Nonmetal quartz tube heating elements, Say “No” to scale5. Overall Anti-electric wall ,water-electric isolation, ABS insulation shell, Bulit-in RCD6. Safety protection: protection against leakage , overtemp, overpressure, dryheating, lightning strike