there are 3 Modes: Water pumping, oxygenation, lighting. Side intelligent sensor, water can be released with a wave hand. Low noise in normal operation, great for bedrooms and living rooms, no annoying noise. High efficiency, low energy consumption, USB charging. Comp t with light weight, easy to pl e and bring with you. Made of high quality ABS material, which is ecofriendly, durable and use longer.