While we were working, we listened to Christmas music on my AYL Soundfit bluetooth speaker (http://www.amazon.com/dp/B014VJD6PQ). This is a great little speaker! For under $30, the quality is great! It looks and feels more like a $50 speaker. It's super easy to use, I charged it with the included USB, turned it on and paired it immediately with my iPhone. It gets quite loud and the sound quality is also very nice. It's the perfect size to fit in a shower, take to the pool or beach, or use while playing outside. It comes with a mesh carrying case, but the design itself is pretty rugged so you might now need it.
The box does say it's waterproof, but the product is actually water resistant. They do not recommend submerging it in water, although the company says it will most likely be OK if it accidentally falls in.
I received this product in exchange for an honest review. All opinions are my own.