This little thing packs a punch!Firstly, connecting it to an android device is ultimately straight forward. Apple devices you gotta fiddle with a bit, (turning off then on for Bluetooth or restarting the music player app that you're using). Instructions are minimal, because connecting to most devices will be that easy.If you're looking for some BASS in a portable speaker device, this is probably the best on the market, power-wise. Obviously, you aren't going to come close to any sort of legit sub woofer, but it's a bunch better than placing a phone in a bowl! If you're looking at small circular speakers that cost the same amount, they won't compare, sound quality wise, so don't even consider unless you need something that fits in your pocket. This speaker is about the size of a decent sized water bottle, and feels like you can toss it around without worry.The waterproofing has so far served me well, and volume can be turned up so loud that I worry that the upstairs neighbor might hear the music over my shower singing.Only downside for me is that the silicone hanging loop for it doesn't spin so I can't completely angle the speaker to my liking without buying another attachment.Seriously though, for the price you pay for it, you can't get a better speaker.