The yoyo-shaped kinetic energy generator that turns every toilet flush into clean electricity for your smart home.
You flush your toilet. Immediately, your phone lights up: "0.5 watt-hours generated." That energy just powered the leak detector in your guest bathroom—which just caught a slow leak that would have cost you hundreds.
Your dashboard reads: "47 kWh generated this year—enough to power your smart home sensors for 3 months."