Instruction: Answer the given question using the supporting document.

Input:
Question: Does a lavalier mic work with this?
Document: I hooked this up to my iPhone 4S (also tried with iPhone 5 and 4S and on a MacBook) and doesn't work. This splitter is so simple it's hard to believe that it could be broken. I've tested my Lavalier mic and the multiple iOS devices' headphone/microphone jack and everything works except the Rockit splitter.Not worth the $12 US (as of June 12th, 2013).
Didnt work for what i wanted it for and that was to split the combined. headphone/mic jack on asus laptop.
Purchased this item to connect an external mic. It did not work. I returned the item. I Would not recommend.
In fact, when I tested this microphone with the three splitters sent me by ES Devices, it did not work with any of them. However, other microphones I own do work. So he is correct, the problem was not with the Rockit, it was with my mic.
Seems to work well. Enables me to use an external mic with my Nexus 4 and my Acer C720, while still being able to use the headphones. I have an older Sony electret condenser mic that I used to use with my minidisc player (yeah, I'm of the &#34;XY cusp&#34; generation! ), and it works with this adapter (draws power and everything).
I can only speak to using this with a MacBook Pro but I'm sure it would work just as well with any PC that has a 3.5 mm output. For me this was a perfect solution to my problem. I have a network phone that I use via my Mac so when I was listening to iTunes while working I would have to take off my "good" headphones and put on my crappy mic enabled headphones to answer phone calls.
The manufacturer does not respond and ignore the customer commentsDevice does not work with ipad iphoneThere is fraud in advertising .
works sometimes but unstable. it seems to work when you initially plug it in but if you where to unplug it and put it back in, it doesn't work. I got a refund for it.
This did not work for me. I wanted to use it to record and monitor on my iphone at the same time but it just recorded feedback. I hope to get a refund.
Works fine with an actual microphone of some sort plugged into it, but if you're planning on using this to send any sort of line-level signal from a mixer or something like that to your phone (like if you're doing a radio show/podcast) - this will not work. To this day I have not found anything that allows you to do this.
Answer: in principle, it should work as long as you are plugging the mic into the mic connector on the unit. I think that people run in trouble with this unit when they try to use it as a traditional splitter, when it's designed to separate mic and phone for integrated mic/phone connectors.