I would deduct one star, not because of the memory itself, but for the ease of installation. The N60 NCs have good clarity, decent sound separation and have the added benefit of noise cancellation. One died just under a year old and they warranty replaced it within 48 hrs of me telling them. The dress is beautiful but the sizing is way off. That might be why Crocs have air holes on the top of theirs. The real deal. I will probably make a rolled hem or add blanket binding. Thats an issue. It’s a cute style and stays on. The control buttons are pretty simple - volume, play/pause, next track, and volume.