I ended up returning this Bluetooth speaker. It seems great for outdoors and floats on water, but the volume is not very high at all.

Sounds pretty good. It's good value for the money.

I bought this speaker and returned it just because the volume was not loud enough for what I was looking for. It seemed I was giving up volume for the water resistance because it floats in water. I prefer more volume.

This is quite a respectable BT speaker, for under $20. PROS - * Suitable for relatively noisy environments (good volume range) * Overall good quality mid & high range response * Waterproof design * Easy to pair with various devices * Includes Power, Pause/Play, Volume, and FF/RR controls * Long battery life between charges (I'm averaging 10-12 hrs of run-time) * Price CONS - * Little to no bass response * Controls are a little awkward to use While this speaker won't rattle the windows, it has enough power to overcome the noise aboard a cruising boat with almost no distortion. The controls, while intuitive to use, are sometimes difficult to activate beneath the speaker's waterproof covering. Frequency response is really quite good and clear in the mid and high ranges. If your music tastes lean heavily toward thumping bass, I'm afraid you'll find this speaker to be lacking there. All in all, the iLive BT, waterproof, rechargeable speaker is an excellent value for the average listener.

This replaced a speaker that came with a suction cup which lasted all of 30 minutes before it fell and smashed. I LOVE the carabiner, it clips to the top of a glass shower door well and would work on a shower curtain as well. The battery life is decent, too. The only place it falls down is the connection time when turning it on and sometimes it requires turning it off then back on before it connects. Plenty of sound for a shower/bathtub.