Harmony Hub and Harmony 900 Mini Blaster IR Emitter
Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
Sanus ELM501 IR Repeater System Hide your gear and control it using your existing remote at Crutchfield
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
Logitech Harmony IR Extender System | Ubergizmo
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics
Amazon.com: Original Logitech Ir Mini Blaster (Emitter) for Logitech Harmony Smart Control Remote : Electronics
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics