Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
Extending Harmony IR mini blasters | Page 8 | AVS Forum
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics
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
Home Hub Extender
Logitech IR Extender System
Logitech Harmony IR Blaster
IR Repeater Kit -IR Remote Control Extender, Controls 1 to 8 Devices (Expandable to 12!) - SmarThingx