Logitech Harmony 950 Infrared Remote Control and Wired Remote Control Extender | Groupon
Logitech Harmony IR Extender System
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Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics
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Harmony Ultimate: Hub and Mini-Blaster Placement Tips - YouTube
Amazon.com: Harmony IR Adapters, Ancable 2-Pack 2.5mm Mono Plug to 3.5mm Mono Jack Connector for Logitech Harmony Hub and IR Blaster, IR Emitter Extenders, IR Repeaters, IR Receivers : Electronics