But beware: there is a lag of about 0.5 seconds between the accessory and the display screen on the external monitor. This makes most mobile action games impossible to play properly. Use then for spectators or for recording (be careful however to appliances or content "protected" against copying: this accessory will not touch DRM). For comparison, Chromecast widely worse, suffers from about 2 seconds of lag.
In addition, there is a slight loss of display quality, due to the compression of the image. Not surprisingly, as the Wi-Fi does not support raw bandwidth of a wired HDMI connection. For comparison, Chromecast seems to offer a lesser image quality.
Finally, note a slight loss of performance of the unit issuing the video. This does however feel that the 60 frames per second turning video games, where any loss of "frame" is felt by an unpleasant jerk on the original unit of the video stream.
In short, if you want a simple, convenient and wireless display the contents of your device to a TV, monitor or projector HDMI, this accessory is for you. If you seek perfection of the image, use a cable with a potential MHL adapter. But this has obvious implications for ergonomics-related cable itself.
