Check the listing for details. J-TECH HDMI2.0 4K HD BASE EXTENDER JTECH-4K-EX-HDBASET RECEIVER ONLY. Condition: Used, Made in China. Listed at 20.00 USD. The J-TECH HDMI2.0 4K HD Base Extender JTECH-4K-EX-HDBASET Receiver Only is a high-quality audio/video transmitter designed for use in TV, video, and home audio setups. Made by the trusted brand J-TECH, this product is capable of extending HDMI signals up to 4K resolution for stunning visuals. With a sleek design and efficient functionality, this receiver from China ensures a seamless experience for your audio/video needs.