Easily connects 2 HDMI cables into 1 HDMI cable for long distance extension purpose and turn HDMI male port to female port for connecting other device; This hdmi female adapter support Audio Return Channel, HDMI Ethernet Channel, 3D and 7.1, 5.1 Dolby digital sound pass through for you to surround by rich sound; This female female hdmi connector support HDMI signals from devices such as TV Box, Xbox 360, Xbox One, PS4, PS3, PS2, Blu-Ray Player, PC, Laptop for HDTV, Monitor, Projector and more; Metal connector, corrosion resistant, while providing the best signal transmission, providing a better viewing experience； Package included: 2 Pack female to female 4K HDMI adapter.