I purchased these recently, very happy with the purchase, no buyers regret at all. Sound is natural, clear, detailed and accurate. Very comfy, i wear them while running, they don't come loose at all. What drew me to them was the highly recommended review from Stereonet and other audiofile grade sites. If your after big blowy bass these may not be for you, if your after a clear natural balanced sound, then give them a go. I also like the buttons on the top of each bud that you press to go from noise cancelling to open (so you can hear conversations etc), it's quick and easy and just works. the buds and mobile charger case all feel and look of high quality. highly recommended.