Prospera Corp TENS Electronic Pulse Massager

I purchased this product approximately 8 months ago, and up until 3 months ago had no problems. First, I wasn't getting a good electronic pulse. So I ordered new pads, thinking that was the problem. (Then screen looked good so I didn't think it was batteries). That helped for only the first use, the second use had me adjusting to 8 & 9 depending on the area. And believe me, the first couple of months I couldn't go past a level 5. I had surgery and didnt use it for a month. Then last night, the LED screen started to fade out. I changed the batteries, and it didn't help. The pulse is still slipping & it looks as though I might lose the screen. I hate it that I am going to have buy a new one.I rated this product as a 3 because I loved it the first 5 months, and it became my handy sidekick for my chronic pain. I went to the company's website, and they only have a 90 day warranty on their products. If this is the way the product is going to perform then it's not worth the price.