Yugster offers the refurbished Logitech Harmony Link, model no. 915-000144, for $16.97. Coupon code "FreeYugBuck" drops it to $15.97. With $4 for shipping, that's the lowest total price we could find for a refurb by $3. This receiver connects with iOS or Android devices and turns them into a remote control via the companion app.
A 30-day Yugster warranty applies. Also of note, the countdown timer on the product page does not reflect an actual expiration time and resets daily.