For those not familiar with these, they are Bluetooth buttons and must be paired to a phone or tablet nearby that has Internet access in order to work.
They are not directly compatible with smartthings, but they do have their own IFTTT channel so they can be used that way. There is also a direct harmony integration.
Each button does tap, double tap, and long press, so you get three functions from each one.
I have several and really like them, but I have them paired to tablets that we use as home automation dashboards, one on each side of the house, so we don’t have the problem that if the phone is gone the flic doesn’t work.