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Amazon.com: SIIG Pro Wireless IR Remote Control Extender Kit, Infrared Repeater Signal Booster, IR 20 to 60 KHz - USB Powered Transmitter and Receiver with Pairing Button - 656FT (200m) CE-RC0111-S1 : Electronics
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics
Harmony 880/890/1000/RF Extender AC Adapter
Logitech Harmony RF Wireless Extender With Ps3 Adapter for sale online | eBay
Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay