ALINCO Ele Neck Neck Care This product uses EMS to reach deep muscles, providing electrical stimulation and heat to relax and care for the tension in your neck. By applying electrical stimulation, it targets not only the surface muscles of the neck but also the deep muscles. ■ Rechargeable ■ Modes: 6 types ■ Intensity adjustment: 16 levels ■ Continuous use time: 10 minutes ■ With voice guidance ■ With heater I am selling this because I received it as a gift and don't use it. I have only used it once to try it out. *Please note that the item will be shipped without the box.