I was a little skeptical about these headphones at first due to their small size but they've far exceeded my expectations so far. I haven't done a full test of battery life but due to the good connections between the earbuds and returning them to the case I don't anticipate any charging problems like I have had with some other wireless earbuds. These come in a super small case which doesn't have indicator LEDs for the amount of remaining charge in the case but they do have a LED to indicate when the case is charging. Single press on left or right earbud for decreasing or increasing volume. Double press on left or right earbud to pause playback. Hold on left or right earbud for changing track (forwards or backwards respectively). The case is not transparent like some earbuds I've had so you cannot check to confirm if the earbuds are charging but as I said earlier, a solid charger connection so I don't anticipate any charging problems. Overall from my first impression an incredible set of earbuds!