Logitech Harmony Remote Charging Dock and 18 similar items
Amazon.com: 2-Pack Infrared IR Mini Blaster (Emitter) Extender for Logitech Harmony Smart Control Remote, Add or Replace an IR Mini Blaster : Electronics
Logitech Harmony IR Extender System Lands For Budget Price - SlashGear
Amazon.com: Original Logitech Ir Mini Blaster (Emitter) for Logitech Harmony Ultimate (Home) Remote : Electronics
Harmony® RF Wireless Extender Extends the range of select Harmony remotes at Crutchfield