Costco offers its members the Vizio Wireless HDMI HD Video & Audio Kit for $129.99. (Non-members pay $6.50 more.) With $4.99 for shipping, it's the least expensive wireless HDMI audio and video kit we've seen. (It's a current price low for this model by $14.) Sales tax is added where applicable. It enables high definition wireless transmission between your television and up to four HDMI components from up to 30 feet away.