Review on 🔌 J-Tech Digital Wireless HDMI 4K Extender with Zero Latency, 30M (100ft) Line of Sight, 4K@30Hz, HDCP 1.4, CEC Function - Ideal for Gaming, Live TV, and Desktop Computer - JTECH-WEX-60GA by Huntsville Rawson

Truly zero latency product for all practical purposes. Bought 2 systems. Another worker. Another drop in performance (or increased receiver noise) 2 weeks after installation. I have to deal with the seller because I have exceeded the return period. Here's what I'm basing it on: Initially, the device had no problem operating at 60 feet. Today it will not connect at 60 feet. UPDATE: He eventually died entirely. Got a prepaid ground transportation tag to return it. He was delayed somewhat by a storm in Texas. We received a returned device that was shipped within a day or two of the device arriving. Generally lost about 3 weeks.