New in open box. Contains case with transmitter and receiver cable, adapters and instructions. Allows computer, laptop, PC, camera or smartphone to wirelessly connect to HDMI equipped TV or HDMI device to mirror in up to 1080p HD. 5G chip allows set up and switching up to 50 M (165 ft). Portable size. Easy to use and doesn’t require apps, Bluetooth or WiFi - it is auto paired. Wide compatibility.