Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can this earbud be used for hands-free talking? Is it compatible with the Samsung Galaxy S4?
Document: This is the best earbud i have ever used. I am deaf in one ear and using a set of earbuds i was missing so much sound this puts them together. The quality of this earbud is just awe inspiring, and it has different size earplug to fit your ear. completely cancels other noise. If you have one ear to hear with this is the earbud for you.
I opened the box and it fell apart in my hands. Very poorly made. Where silver band is, is where it just split apart.
I bought this because I like to listen to digital books while I am out walking. I like to have one ear free to  listen for approaching cars or other safety situations. You can listen to music with it, but it's still nothing like stereo sound earbuds. But for my digital books, it does what I wanted it to do. No complaints.
This earphone is perfect for me. I listen to music while I'm at work, and if I have both earbuds in, I can't hear what is going on around me in the office, so this one earbud is perfect.
This is one great earbud for those who only have hearing in one ear. I have tested quite a few of these and found this unit the best so far and, of course, Amazon Prime get's it to your doorstep quickly.
It is probably priced about right. It sounds better than ones that I have paid about $10 or less for, and is slightly inferior to one costing $50 or more - but those are prices for a pair - less to choose from for a monophonic earbud. And it stays in my ear OK.
It really is... an innocuous, single earbud that pipes both left and right hand Stereo channels into a single Mono signal, for those times when you're riding a bicycle, hiking, walking or jogging and need to leave one ear open for safety and situational awareness.Nice long cord, so it can be tucked under your clothes for that &#34;Secret Service&#34; look.It does the job, and quite nicely, too.
First off, I didn't really closely read the description, and when I received this earbud I was surprised it had only one earpiece. But when I read that it channeled everything through the one bud I was delighted. However, when I went to insert it into my iPhone (which is what I wanted to use it with), it did not fit with my Otterbox case. I have the Otterbox Reflex Series case. So I had to send it back.
So excited at first, but for me in less than two weeks of admittedly fairly heavy use they stopped working. Probably the same reason as usual with me...I theorize the headphone wire gets repetitive-use syndrome or metal fatigue break from little movements it makes during normal use. With regular headphones, someone like me with one sided hearing loss just starts wearing the good earbud in the good ear. When it gets the metal, or wire fatigue shall we dub it?
The color and sound on this single earbud is very good. They only give you 2 tips and the other one was too big, so I replaced with the smaller tip. At first, I was hearing static with the larger tip and when I moved the part you plug into iPod. I just hope it lasts a while. NOTE: AFTER USING FOR A WEEK, IT HAS STARTED IRRITATING MY EAR AND CONSTANTLY COMING OUT. THIS IS WHY I PREFER BEHIND THE EAR EARBUDS AND HEADPHONES.
Answer: No. It is for listening only; there is nothing to talk into.