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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Harmony® RF Wireless Extender Extends the range of select Harmony remotes at Crutchfield
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BlastIR Wireless Pro IR Repeater — Sewell Direct
Extension cable/cord 4 Logitech Mini IR Blaster,harmony 900RF extender,Google TV 708981172869 | eBay