1)This product is a digital Bluetooth equipment of next generation. 2)It can be connected to mobile wirelessly to make talking easier and more convenient. 3)POLAROLD polariscope from US. 4)Bluetooth V1.2, with effective distance of ten meters, talking time of up to 5`6 hours, and stand-by time of up to 100 hours . 5)Flexible, wireless headphone can be fixed within an angle of 270 degrees. 6)One unique miniature port for both USB and charging, minimizing its volume greatly. 7) Product dimensions: 165?63?5mm.