GORSUN E6 Sport Wireless CSR Bluetooth 4.0 Dual In Ear Headset Long Standby Headphone For iPhone Sumsang HUAWEI XIAOMI etc.   Features:1.Bluetooth headset with NFC function、 soft and comfortable imitation protein earmuffs2.Dual In-ear design、ultra-long standby、never worry about the battery when you are listening Specifications:          General Specification             Brand       GORSUN             Model       GS-E6             Color       Black、White             Wearing Type       In ear           Technical Parameters             Plug Type       3.5mm             Working Time       More than 5hours             Maximum input power       10mW             Driver Unit       9mm             Cord length       1.2mm             Impedance       16Ohm             Frequency Response       20Hz-20000hz             Bluetooth Version       CSR4.0 with NFC 863            Transmission Range        Up to 8-10m    Package  Included:                 1* GORSUN E6 Wireless Sports Headphone