The TENS unit arrived on the day I expected, and I'm very, very happy with it. I use it on my back, so the thing I like best is I can attach the pads, then set the unit. I have another different brand, and although I like some things about that one, the unit attaches directly to the single pad, and it's impossible to do when I can't see it, because it's behind me, on my back! This one has convenient, long cords and a belt type clip that I can also put in my pants pocket or clip to the top of my pants or a belt. It's easy to set up, and feels great. The multiple settings make it easy to vary the type of pulses I want. I give this five stars 😊