If the wearable technology market hadn’t already peaked, it will now with Pornhub’s Wankband.

“Every day, millions of hours of adult content are consumed online, wasting energy in the process and hurting the environment. At Pornhub, we decided to do something about it,” the free pornographers said in a press release. “Introducing The Wankband: The first wearable tech that allows you to love the planet by loving yourself.”

The Wankband looks like your average fitness tracker. Only instead of tracking your steps and hours spent sleeping, its technology is designed to generate and store energy when used in an up and down motion. So it generates and stores energy when men and women masturbate.

This “natural source” of energy comes equipped with a USB port, so users can plug in any of their devices — smartphone, laptop, camera, or tablet — to charge. It’s technically clean, sustainable energy albeit the “dirty” way in which it’s acquired.

Interested men and women can apply through the site to be a be(a)ta tester as it is currently in development.