Once my Keen arrived in the mail, I charged it for a couple hours and was ready to go. I fiddled a bit with the settings—you can customize how sensitive the device is to your behavior, which makes it vibrate more or less often, and change the intensity and duration of each vibration.
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: