Hdmi bi-directrion dual function switch and hdmi splitter Speaker HeadPhones it also offers two usb-a

it also offers two usb-a ports that are said to charge devices with 5

leaving no trace

distributes hdmi input into four identical outputs

data transfer speed

nano receiver hidden in the mouse button

Hdmi bi-directrion dual function switch and hdmi splitter Speaker HeadPhones it also offers two usb-aa non powered hdmi switch or splitter that allows you to either connect two device to one tv or split 1 device to 2 displays. plug and play with no power required. supports 3d supports hdmi specifications up to hdmi v2. 0 does not require an additional power supply leds to indicate the active port 4k 30hz the hdmi input output cable length can be up to 5m 4k 60hz 4: 2: 0 t he hdmi input output cable length can be up to 5m 4k 60hz 4: 4: 4