One of my favorite purchases in recent memory was this bottle with a speaker built into the lid. I picked it up because I thought that it would be a great motivator both to keep an AAC speaker near me, and to make sure I’m drinking enough water.
The sound quality of the water bottle is relatively good. I’d compare it to a mid-end speaker, like a JBL. It charges relatively quickly, and holds a charge for a few days at a time. It connects easily to my phone and tablet, which makes for easy AAC use at any given point. It does cut off the first word when I use any given app, though, so you have to add a period to the start of your sentences.
If you’re looking for a subtle way to keep AAC available near you all the time, this is a great option.