A:Answerits totally depend on your ear size. they have designed in a way it stays in place for most of us - for me its not that quite. Accessories are available to have it fix well. You can refer this video of accessories available : https://www.youtube.com/watch?v=o6oMTV47C90
A:AnswerThe storage case is the charging case with a battery. Charge everything up and carry around. If you use the pods for a while drop them back in the case and they will charge up from the built in battery in the case. I forget how many times the pods can be fully charged by the case, before you need to charge up again from a power supply. Yes they work on an Android phone; these use standard Bluetooth connectivity, so just pair up as you would any Bluetooth device. Connectivity is a more seamless and automatic if using with an Apple (I-phone etc, etc).
A:AnswerThe AirPods come in a case and the case is what charges the AirPods, to charge the case you use your lightning usb cable from your iPhone and your able to see your battery percentage of the case and AirPods either in widgets, settings or when you pull them out to use them.
A:AnswerMine will last 4 to 5 hours with a single charge. I use both at the same time and it only takes 15 minutes to fully charge the buds once you put them in the charging case.