Bear the level of threat in mind, and spend accordingly. They are excellent and the long battery life is a plus. like i said the needle was difficult to push through. With a nice thick pair of socks, hell be all set. Voice dialing! It just doesnt make sense to me. Id suggest wearing them with socks at first, or for short periods of time. The front is a little loose if you have big boobs and is not supportive for our girls. Im just about to bin the 2nd pair mainly because of a similar issue with the foam and liner card shifting, also the foam gets quite thin. You have to download an app on your iPhone (only Apple is supported) and then go through several ?games? to get it.