MIPOW BTX500 is a professional and understated luxury surround sound Bluetooth headphone. The earphone is made of comfortable memory foam and velvet material. It is compatible with most cell phones, tablets, notebooks and other Bluetooth devices. Built-in USB port and supplied 3.5 mm retractable cable support enjoying music by non-Bluetooth devices. The USB port is also used to recharge the headphone. The application of noise cancellation technology ensures its perfect acoustic quality. Its clear voice call function allows you to freely chat on with others. The built-in battery supports 15 h talk time and music playing time, 25 d standby time.