With the water-powered alarm clock, you'll never have to worry about being without a battery.
The eco-friendly design of this alarm clock allows it to run entirely on water without ever requiring a replacement battery. All you'll need to do is fill the chamber with tap water and the clock will run for up to 14 weeks. When it requires a refill, you won't have to worry about reseting the time because a built-in memory chip keeps it from blacking out. The design is fetching and futuristic, while the function is spot-on by harnessing one of our most precious resources. The surprisingly low price of $39.99 will not only save you some cash, but will also make your bedroom a little greener.