Well.
Battery lasts 12 13 hours of playtime.
I've used them in the shower multiple times, no issues.
Range is about 30 feet.
They stay in your ear surprisingly well with the right sized ear attachments (included).
Sound:
Bass is DEEP.
In the first week of use, you won't feel much bass, but after that, you can hear the bass, you can feel the bass, and you can tell that air is blowing in and out of your air.
Sound is clear, bass is a bit overpowering but i would prefer it.
Only con i found is that the mic is pretty crappy, it picks up more background noise than your own voice, but i use mine for music, so I don't feel like it's an issue.