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Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
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Harmony: To IR Blaster extend or not - Connected Things - SmartThings Community
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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
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Logitech Harmony Elite review: I'm finally living the automated smart home dream | Ars Technica
BlastIR Wireless Pro IR Repeater — Sewell Direct
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Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics