Amazon.com: Logitech Harmony 665 Advanced Remote Control, Universal Entertainment Remote, Replaces up to 10 remotes with Guided Online Set-up and Interactive Help (Renewed) : Electronics
Logitech Harmony Support
Logitech discontinues its popular universal Harmony remotes - 9to5Mac
Logitech Harmony Is Dead. Here's How the Smart Remote Lost Its Way | WIRED
Harmony Software
New Harmony 600 and Harmony 650 Remotes Debut | logi BLOG
User manual Logitech Harmony 950 (English - 8 pages)
User manual Logitech Harmony 900 (English - 59 pages)