Update by user Mar 24, 2020 I was contacted several times and have since sent the product back and am waiting for a new device to arrive. They were really great in keeping in touch with me. I first was messaging with someone from London England, finally someone from the company in Las Vegas told me to send the product back to them and send me a new device. At this time I am still awaiting the arrival of the new one. I will get back to you once this is settled. Original review posted by user Feb 23, 2020 I was on a cruise, got off ship to shop and was talked into buying products I never should have bought. They had me, hook, line, and sinker. I feel so foolish for spending so much on these products. In other words, I was duped. My Opatra Synergy neck device stopped working. I sent emails, never heard back from them. These products are not even 1 year old. My husband, of course said,I told you it was a ripoff. Now, what do I do? Can't remember if I sent my warranty for a product that says lifetime warranty. I was going through breast cancer treatment at the time and maybe did not send my warranty info. This happened in the Virgin Islands, I am in the US. Please don't fall for their tactics, I feel stupid that I did fall for everything they told me.