about this item:

8 unique EMS modes and 19 intensity levels, you can customize your massage exactly the way your body needs. It uses Electrical Muscle Stimulation technology to activate and contract your muscles — just like walking — helping to: ✔ Improve blood circulation ✔ Reduce swelling & inflammation ✔ Ease cramps and stiffness ✔ Relieve plantar fasciitis discomfort ✔ Relax tired legs and promote better sleep It’s lightweight, foldable, portable, and fully wireless, so you can use it at home, at your desk, or even while traveling.