jamesbou The sound quality from ease gives excellent.. it has a nice punchy sound and plenty. Plenty of volume. there is no active noise cancelation, However, they do seal the ears very well.

jamesbou I'm not sure I understand what you're questioning is. Can you rephrase it?

jamesbou Absolutely, 100% positive, without a doubt, guaranteed true...

jamesbou Most assuredly, I use it in a 2002 Corolla

jamesbou It does. These are fantastic batteries. One of the top in my collection,

jamesbou It will. Works on very nearly all cars made from 1996 forward.

jamesbou If you want. to use flat top and they are not long enough, simply place a small magnet on the top of the battery. Problem solved!

jamesbou No, I when you connect to another device, it then becomes the device the earbuds seek when they are turned on. However, that it is super simple to reconnect then to the original device. Takes less than a minute. I've got a pair of monster speakers that I bounce between two different phones and a laptop, but I so I do this quite often. Easy-peasy.