Skullcandy - Crusher 3.0 Wireless Over-the-Ear Heaphones - Black

Yes I use these exclusively to work out they stay put and sweat isn't a problem. I use an alcohol wipe or fitwipe when I remove them they dry fairly quickly

Yes, they are just as loud and they have way more bass than the "beats" with an adjustable dial!

Yes! I use these for gaming and i haven't had any complaints of clarity from any of my friends

My experience with this has been very good. The Bluetooth connection really will vary though, because it also depends on the quality of the signal of the transmitter (in the phone). Having said that, these headphones have worked very well for me and my son (iphone and Note 5). We can use them between multiple floors in our house, including down in the basement. I have a small house, but I would say at least 50 feet of consistent connection (may be farther, but thats about as far as I need). As for the gym, it probably depends on what you are doing (jogging vs lifting, etc). They are kinda bulky (not overly heavy, just large), and would probably be cumbersome and get pretty sweaty too if it was anything high intensity. Great headphones overall though. Hope this helps.

As long as the ports don't get wet while they are on they should be fine I have gotten them a little wet and they work the same but if they get "soked" then let them dry out before trying to use then so you don't shot out anything