Have a bad habit, like biting your nails? Keen helps people break those habits by sensing when they’re performing the action and vibrating to alert the wearer so they know to stop.
You, she reminds, are who’s really in control. And that’s where Keen comes in. When the bracelet vibrates, it’s bringing the picking compulsion from the subconscious into the conscious — giving you the ability to then consciously say to yourself “my hands are not where I want them to be”.
It's important that Keen fits snugly. Here's a quick guide to help you decide which bracelet size to order: