This is a very good headphone from Oraimo. Charging it for 10 minutes will let you use it for up to 12 hours. It has been about a month since I bought it for 2500 taka. We have another one which I will use, so I am selling this one. There is no point in just leaving it lying around, so anyone who wants to take it can do so. I will sell it for a low price. There are no problems of any kind. You can check it, charge it, and listen to music. The most interesting part about this is that if you charge it for 10 to 15 minutes, you can run it for 12 to 13 hours.