1. water clocks powered by water, 2.no pollution, no battery,green power 3.ECO power clock 4.new electronic gadget 5.CE,ROHS water powered clockchina waterpower clocks factoryScience and engineering come together to create the amazing water clock.1.Without batteries, electricity or any other power source, the clock can show the time and date clearly.2.A truly green product, it's an all natural ...