... pump, air switch and 10pcs of jets 5). Ozone--water purification (only worked on control B) 6). Control Panel A---chromatic ... water level detector, lock, chromatic bottom lamp & FM radio Control Panel C--8.4'' TV+Ozone, whirlpool controller, LCD digital ... noise.2. Safety and durableare worthy of implicit belief.Protection switch, air-switch, much more safety, UL quality certification.3. Humanization ...