H20 Desk Calculator
This great invention is good for the environment and do not need solar power to recharge it, just use water from the tap or a water bottle and it works like a charm.
The buttons on this calculator are about 3/8 ” and has large LCD,therefore; if you are out at night camping and have no sun, then no worries use water and it also has a non slip bottom just in case your hands are wet. This calculator’s battery compartment is in the back of the unit and it has batteries that you replace by adding a few drops of water in them and you can use them from 2 to 3 months. This product is not out yet but will be sold on Solutions . com.[ad]
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