A:AnswerYour best bet is to contact Anker support directly to request purchasing a second case. I'd assume it's probably only for warranty claim only though, so you might have to buy the entire product including earbuds again.
A:AnswerThere should have been a set of three different ear size end pieces in the box. As for how many time to touch/tap. All touch function controls will be in the user manual that came with the product and if not then there is a manual on their website.
A:AnswerI prefer the Rock, Hip Hop, and Jazz settings myself. I've discovered those 3 settings give a more balanced sound with the equalizer app I downloaded for use on my Android LG G6. Hope this helps!
