I originally bought the INA Wave 1 from a local store. It was much louder after using it one time, & in the store the model wasn't that loud. (Which is why I bought it in the first place). I returned it to LELO, thinking there was something wrong w/it. The replacement was the LELO INA Wave 2, which was even worse. I'd wished I'd kept the first one, but no one told me that was just how loud they were. They didn't have any of the #1 model, so they sent me the 2. It recently quit working for no apparent reason, so they sent me a new one. It is EXTREMELY LOUD! Way worse than the other two I had. I won't be able to use it, & get much out of it that way. I'm not happy with this product, & they won't let you exchange for anything else, even if it's of lesser value. With the help of the salesperson I originally bought the first one; I think I just ended up getting one of their most faulty items. They are not all the same; some are loud, & others are extremely loud,,,of the same model!! I was thinking of trying one more of their other products, but I don't want to waste more $ on something, especially with those prices.