ELEALTCH Adjustable Abdominal Muscle Belt for ABS Workout - 24" to 47" Waist - Perfect for Home Gym, Fitness Training & Core Strengthening

Okay, this is actually working as part of my core routine. I notice that when I use it after my workout it is like pushing those last few reps. It won't work if you don't. That said the design of the belt is terrible. The initial belt is for people w/ a waist under 30", the extender is a long velcro band which only attaches to the belt in spots. This leaves part of the band to get twisted or stuck bunched up under the belt. Instead of being long enough to secure in front the velcro has to be secured behind the back which is just awkward. Normally I would rate something just on performance but this is so poorly designed I just had to knock off pointsWas really excited to try this, but way too powerful and only got up to 50, it hurt my freckles and tiny moles, tried putting bandaid but didn't help. Really bummed.I have another, the original flex belt, and thought I would give this a try since it has non-removing and reusable pads. It comes with 4 contact points instead of 3 that I was used to, and boy, this thing is crazily strong. With the flex belt I can go up to 140, but on this, up to 50 and I am hurting!Overall feels like a quality alternative to flex belt. The only downside is that on flex belt, you’re able to press the buttons down on both sides to increase the intensity together. On this, you have to do it individually. Not the end of the world, but if there’s a memory function, that would make it perfect.I liked that the battery last pretty long.but this belt is more for a smaller waist like 32w with the extension it helps but its difficult to center so it wont scratch your back. .my waist is 28 and way to small uncomfortable.i started intensity at 15 wet my stomach and pads real good and still felt tingling.what i noticed was i went up all the way to 60 and it felt the same as 30 so i didn't bother going any stronger because it felt the same as 40.main thing is the pads felt like pleather not leather.the stiching seems cheap as well.i used it for 6 days at 60 and itcdidn't feel any different.i also noticed 3 different brands $55 $69 And $75 after research they are all the same except brand name.i returned it with no problems. i paid half the price for another brand and to me and my wife it fells beter. I was hoping to keep this but no i sent it back. So sometimes you dont get what you pay for...Works greatVery good product,Nice machine. I however did not find a warranty card inside. How long is the machine good for and where do I register it - can't find it on your website?