Does such a device exist?
I can find a ton of transmitter/receiver pairs that use their own wireless protocol, and of course no shortage of Miracast receiver dongles, but nothing that will wirelessly transmit an HDMI signal to a Miracast-enabled display.
I can find a ton of transmitter/receiver pairs that use their own wireless protocol, and of course no shortage of Miracast receiver dongles, but nothing that will wirelessly transmit an HDMI signal to a Miracast-enabled display.