Tanga offers the refurbished Logitech Harmony Smart Control 8-Device Universal Add-On Remote for Harmony Ultimate Hub in Black for $19.99 with free shipping. That's $10 under the lowest price we could find for a new unit. It's compatible with over 270,000 devices and controls up to eight devices,

Note: This remote requires the for Harmony Ultimate Hub (sold separately) to function. It does not have IR capabilities and will not work on its own. A 30-day warranty is included, but it's unclear who backs it.