Review on TNP 10ft IR Emitter Extension Cable - 3.5mm Jack Infrared Red Transmitter Blaster Blink 🔴 Eye Wire Cord | Compatible with IR Repeater Extender System Kit, Xbox One (1 IR Eye Emitter) by Nikki Shen

Works well with Logitech Harmony Elite. The Harmony Hub has a 2.5mm plug, so you will need a 3.5mm to 2.5mm plug adapter. This allows me to use separate harmonies in different rooms but with the devices in the same closet. Otherwise, Harmony Blasters will send IR signals all over the closet and may confuse the two systems. Especially if you have the same electronic models for every room. For example, if you send a command to one room, it can change something in both rooms. These mini emitters allow you to isolate the command to a single component in your system. You just need to cover your hub so it doesn't blow up the entire electronics stack. I use a single model for the TV and a triple for the receiver, BluRay and Apple TV.