TBH
I’ll be honest, I was so skeptical of this device. I’ve never used a tens unit before & something about instilling electrical activity into my body didn’t set right. My cramps are absolutely unbearable and have been since I was a tween. This Livia has changed the game. I do not go anywhere without it when it is that time of the month. I use it at work, it is discreet under my clothes, and the pads are so easy to change out. I love this little device!