I have used this Melobuds N20 Pro ANC earbud for only 2 weeks. There are no problems, I am selling it purely on an urgent basis. I need emergency money, otherwise I wouldn't have sold it so soon. You will get all kinds of facilities here. You can check it as much as you want, everything including the box is available. You can buy it without hesitation since I need urgent money, that's why I am selling it immediately. Those who want to buy it should message or call, I will let it go for a slightly lower price.