Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: I know I need the main maestro to make the companion to work but is the companion wireless or you need to hard wired to control the light fixture from 2 locations I only have 1 switch I want to control the lights from 2 locations with out running wires to 2nd location
Document: Used 2 of these with a multi-location Maestro and works perfect for 3-location control. Only con is that the remote Companion switches don't have the indicator LEDs like the main Maestro. Otherwise they work identical, and any location can do On/Off, full-On(dbl-tap), and dim up/down. Last intensity is also memorized for On from all locations.
This is the multi-location companion switch (read 3-way). You will need a master dimmer in conjunction with this switch. I installed it with the MIR-600M-WH 600-Watt Maestro IR Multi-Location Dimmer allowing me to control the lights with my Logitech Harmony remote control. I have had this switch installed in my home for well over a year and have experienced no issues with it.
This is a great dimmer for LED lighting. When paired with the Maestro MACL-153M dimmer switch, you can achieve a 3-way switch that is dimmable at either switch location, regardless of which switch you used to turn the lights on. In fact, you can add up to 9 of these companion dimmers to the main dimmer, though I can't imagine a situation for doing that.
I have installed Maestro dimmers in the past. I guess I had never used them in a multi-locations before. I say that because if I had, then I would have known I needed this item, the companion dimmer to make it work. The frustrating part is that Lutron does not make that fact as well known as it should be. Like stating it on the packaging of a Maestro dimmer! The big box stores don't seem to stock this either.
I wanted mine to be in the middle of my 3 switch circuit, which is where the existing 4 way switch was. It doesn't matter to these switches - put it where you want. 2) You can adjust the dimmer from any location - not just one location as with many multi-location dimmer installations.
This companion dimmer is required for multiple switch location controlling the same device (lights, receptacles, etc.) It works perfectly. Read the instructions carefully. The way this device works is that, basically, the three way and four way switches are replaced with the companions and a master dimmer is required in one location. If you don't care to dim from all locations, all that is needed is one master.
Easy to wire and comes with very detailed instructions on how to wire for different situations such as 2,3, and 4+ locations. Quick installation and everything worked great. Paired with the IR dimmer to control from the couch.
Extremely easy to install. We refinished our lower level and turned it into a sort of home-theater area. The light switch was outside the door though. Moving the entire switch would have entailed a ton of work, so we would set the lights, get ready for a movie, and if we wanted the lights lowered, we would have to walk out of the room to the switch.Being incredibly lazy, we wanted an easier solution! So this works great.
Be aware that this is a slave switch. It will not work on its own and will not work (to my knowledge) with other three way applications. It NEEDS another Maestro master dimmer switch. This does not have the led lights on the side and does not have a find in the dark illumination. Works great.Does not come with faceplate. (They should fix the photo.)
Works exactly as advertised in a three-way setup. I use this with Lutron MACL-153M-WH Maestro 150-Watt Multi-Location CFL/LED Digital Dimmer with LED lights.
Answer: no