Best Buy: Logitech RF Wireless Extender 966195-0403
Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics
RF extender/Blaster/Emitter for logitech harmony 890 /PRO 1000 1100 (no Mini IR) | eBay
Harmony® RF Wireless Extender Extends the range of select Harmony remotes at Crutchfield
Logitech Harmony IR Blaster
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
Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
Logitech Harmony C-RE4A RF Wireless IR Range Extender 815-000013 w/ Emitter | eBay
Amazon.com: URWOOW IR Repeater Hidden Infrared Remote Extender System 1 Receiver 4 Emitters Control Kit USB Adapter for Amplifier Cable Box Satellite TV Receiver CD Player DVD Player Blu-ray Player : Electronics
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Logitech Harmony IR Blaster with Power Supply
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Amazon.com: Logitech Harmony IR Extender System - Black (Discontinued by Manufacturer) : Electronics