This is a pretty good bluetooth speaker and one thing I definitely noticed is that it goes up pretty loud so it would be ideal for outdoor use or by the pool compared to some quieter speakers which are more suited to the bathroom or indoors only. It's IP66 grade waterproof, which means it can survive harsh jets of water, but do not submerge it. This is pretty common for these 'waterproof' speakers so be careful not to let it fall in the pool.

Other than that it's pretty durable and sturdy with a nice chunky design that holds up well against accidental drops and bumps. It comes with a carabiner to attach it to a backpack as well. The controls are pretty easy to figure out, but it actually works opposite of most speakers I've tested in that the + - will raise and lower the volume and long press is to skip forwards or backwards. I prefer this as I find myself wanting to adjust volume far more quickly than skipping.

Audio quality wise, this is a good one. I didn't have any crackling or static with mine and the audio was a good tone. I'm not snobby about my audio though, I'm happy as long as it's a good volume with no audible hisses, cracks or problems. You can also use this to answer your phone if a call comes through. Sadly, the call audio is not as nice, but it's on par with having your phone on speakerphone, so it's definitely at an acceptable level.

Overall, a sturdy, durable speaker with good audio that can be turned rather loud and would be great for poolside!

SUMMARY
********************************************
Pros
+ IP66 waterproof protects against strong jets of water.
+ Sturdy and durable silicone casing.
+ Design is cool and sporty.
+ Easy to use.
+ Audio quality is good.
+ Ability to answer phonecalls with audio quality similar to speakerphone.

Cons
- Cannot be submerged in water.

********************************************
Note: I received this product at a discounted rate in exchange for an unbiased, honest review as provided here. As a consumer advocate, I believe in providing quality and honest feedback and receiving a product at a discounted rate will never affect my opinions.