It's such an odd combination. I hope that folks don't put water in the bottle and cap it.
My problem was unscrewing the cap. It was so tight that I actually broke the speaker. So, I only have a bottle without a cap.
It was a nice gesture, though. I do have many bluetooth speakers, so I'm not heartbroken about losing this one. I just wish that caps weren't secured so tight on bottles. It shouldn't take me half an hour to try and loosen it. Instead, I broke it!
Oh, well. At least I have a nice beverage bottle. It's stainless steel and pretty.