... High quality stereo sound Comfortable wear Good ABS material Foldable headband Any color is available 1.Reader function: plug in TF card ... Power supply: inlay rechargeable Li battery, use high efficient components, it can work more than ... ,WMA,WVA format, maximum capacity 32GB TF card.4.Sound design: Use best horn, ensure ... 30s8.OEM are welcome High quality&best computer headset with TF card function