Every follow up email from your company requests feedback on the Rejuvaknee product. We did not order, nor receive, the Rejuvaknee. We got the triple method shoulder massager. The company doesn't even know which product they sent. We have been bombarded by emails from your company with requests for incentivized reviews, sales pitches for every possible medical ailment with your company's solution. Your own instruction manual contradicts itself. The QR code in the owner's manual is deactivated so you can't see how to properly attach the device. So far, i feel like I fell for some snake oil. I was promised a quick, efficient, easy, free return process and complete satisfaction. This has not been my experience so far.