Check the listing for details. Vanco EVEXHDB1 Evolution HDBaseT 4K HDMI Slim Extender Set x 2 & Binary. Color: Black, Condition: Used. Listed at 39.99 USD. The Vanco EVEXHDB1 Evolution HDBaseT 4K HDMI Slim Extender Set includes two units and a Binary device, designed for extending HDMI signals with audio inputs and outputs. The sleek black design and universal compatibility make it a versatile solution for various audio and video setups. With one input and output for each unit, this system offers a convenient way to expand your entertainment system with high-quality audio and video transmission. Perfect for home theaters or professional audio/video applications, the Vanco HDMI extender set provides a reliable and efficient solution for extending HDMI signals. These were used in my wife’s spa that we closed down. No longer need them. Great shape and fully working. Power supplies included.