There are no issues whatsoever with this Bluetooth headphone, used for only 20 to 25 days. I don't like Bluetooth headphones so I want to sell one. It was brought from South Korea. If you want, you can exchange it with a neckband. I can give this with a guarantee, use it for two days and see, if you find any kind of problem your money will be refunded along with the headphone given for free. Price can be reduced upon discussion.