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High Quality No Batteries Water Powered Alarm Digital Clocks
This is a novel green gadget,it is only through the water (of course,can also be a beer,coffee,and so any kind of electrolyte solution)to power the clock.
Eco-friendly aqua power digital clock with water battery.Activated power by liquids such as water, coke,beer,and more. Japanese technology. Features calendar and time functions.Perfect promotional products for all your client.Various beautiful colors for your choice.