Here is another gadget that turns your iPhone or Android device into a convenient monitor for your cameras and camcorders. The Zhiyun Wireless HDMI Video Transmitter can send 1080p video to devices within a distance of 100 meters. It supports histogram, focus peaking, zebra stripes, monochrome, and custom LUTs.
The ZHIYUN TransMount Image Transmission System is capable of streaming to 3 mobile devices at the same time. It has 8 channels to reduce chance of interference. The battery lasts up to 90 minutes.[where to find it]