Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Does the Emjoi work on course gray hair?
Document: Also considering the same brand of course: "Emjoi Soft Caress Cordless Hair Remover ".This has been my first epilator and so far I think the brand and model is excellent for what its suppose to do. I will continue to use it due to its efficiency and travel size.
Also, for some reason, there's less pain if the hair is short (of course not too short where it doesn't have anything to grab). You can use it to clean up the bikini line, but don't think Brazaillian. I did use this on my legs, and noting that I'm not a fan of pain, it worked for me - I could deal the epilation over a smaller area at a time, but I imagine takes longer than the larger Emjoi Hair Remover.
I have tried several different epilators and the Emjoi AP-9L Slim Cosmetic Hair Remover is the best I have found. Due to a burn many years ago I have dark, course facial hairs. It is very embarrassing. I tweeze daily, wax often, and usually I am able to take care of most of the hairs but never all. I recently waxed so I did not know what to expect when I tried this for the first time. I was amazed when I saw how many hairs were removed.
Emjoi Epi Slim Cosmetic Hair RemoverPROS:- convenient- travel friendly- does the jobCONS:- loud whirring sound- doesn't work for fine hairsnote: EXCELLENT, for thick coarse hairs
I am using this in conjunction with the Emjoi Soft Caress Epilator -36 Gold. It works well underarms because of the slim design. The wider epilator will not work well in small boney areas like the knee cap. Very fast, removes hair well and does not hurt.
What a rip off (at least if it worked, for 300$!!!)! Didn't work well within a few months, certainly didn't do a good job on the coarse hair, left my skin irritated, and sometimes burned. Then did my research again...and decided on the Emjoi Epi Slim. I thought, what have I got to lose for less than 10$? Well, it's been over a month, and my face hasn't been so hairless in many years!
Not even a little like that.Does not work, I tried all ways to do it and nothing works.I thought it was the batteries that I removed from another device, but then I put new batteries, still did not work.I tried several times I just broke and threw it in the trash and my $ 20.51 including shipping I paid was spent for nothing.Emjoi AP-9L Epi Slim Cosmetic Hair Remover
But if the work this Emjoi did on my bikini line is any indicator, I will soon know the feeling.
This is not an item to use on thick or course hair. If the hair is thin and sparse, it works well, If the hair is thick and heavy, it is a torture tool,
This little gem is perfect for all those little hairs that you don't see.... of course until your in public in blinding natural light! If your used to tweezing, this is no more painful, but ALOT easier!! Highly recommended for any lady with unwanted body hair!
Answer: Works on all hair. Gray pull harder. But if you have trouble seeing them this is the tool for you.