Summary: I'm a little restricted as to the type of headphones I can use whilst running. None of the bud type earphones stay in my ear long enough and as soon as you begin to sweat, they drop out. I've tried the sennheiser style ones which are similar to these but they don't sit in the ear as comfortable as the Philips. The Philips earphoes sit really nice in the ear, have a great sound and generally a great product.
Summary: These are ok if your after a mid range pair of earphones and wear an armband. The ear pieces tend to come out your ears when you pick up a pace and I really wish i had spent a little more and bought something better.
Summary: Absolutely perfect for the gym and running, always stay in place, decent enough sound off them. Ony thing wrong is they break easily, firstly after a few months you lose sound in one ear bud and then another few months the other one starts to go.Despite this I have bought 3 pairs of them now as they are the best earphones for the gym when they are working