Yes and NO. A friend of mine had a sota zapper. He loaned it to me. It worked, I could feel them getting uncomfortable and moving around. My friend wanted his zapper back, so I went on Ebay and ordered one that looked just like his. It cost $149. That was October. I am still waiting for it to arrive. For the first two months I was told they were waiting for parts. Now I don't know what the story is. I've given up, don't feel like taking another risk. Applied for a refund. Haven't checked to see if I got it.