This is lightning to 3.5mm adapter cable, which can be used for charging and music at the same time. We also have other styles of adapters. If you need them, please contact us. 1. We do not accept any refund without no reason. 2. We don't refund full if the partial items is damaged in delivery due to some objective matter. But we can accept a partial refund for compensating the damaged part. 3. If the product has quality problems, you can take pictures and vedio to us. When we confirm it , we will give you a satisfactory solution and refund you the damaged part.