Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Is it compatible with Windows 8.1?
Document: This isn't cheap but after going through a few different headsets in the last year one of my coworkers recommended this. I work from home and use both my cell phone and computer/skype to place and receive calls. My only complaint is that there is no Suite for OSX. It is windows only.
)The battery life has been quite good. I do tech support so I will be talking the better part of a 8 to 12 hour shift and I can wear the headset for almost 9 hours before it starts to say goodbye.3.
Simply the best headset ever! Too good to be true! !I replaced my old GN 9350 b/c it did not work with Windows 7. I use the 9470 for my office-PC softphone and cell phone (we no longer use clunky desktop phones, yeah!!).
It comes with PC software but not Mac. Not seeing any "Windows only" messages, I took a chance and ordered it anyway. Turns out the Mac "just finds it" as a USB headset, and I can go to the System Preferences > Audio control panel to select it for the computer speaker and/or microphone. My iPhone connects to it via Bluetooth.
Our organization bought 6 of these to use with the new Microsoft Lync service we are deploying. Most of us are using Macs. On a Windows workstation, it seems to work find. On a Mac, you have one-way audio. Other people can hear you, but you can't hear them. The only work around we've found is to connect headphones to the output on the Mac. So now, we have headphones to listen to people, and a $200 microphone to talk to them.
I have been looking for a head set that would work both desk and cell. This one was rated as able to do that and bottom line is it did do that. However the head set itself is very unconfortable to wear for 8 to 10 hours a day. I tried all the different ear pieces and the only one remotely tolerable was the over the head one. That in itself was annoying.
It took searching Avaya's website to figure out what to do to get it working properly.Softphone setup fair to ok, again the automated setup gives basic instructions. The software support should be consistent across platforms (Apple's OSX, or Microsoft Windows)  However, Jabra only supports some functionality on Windows (such as firmware updates)  If you aren't going to use a soft phone you can still program the headset to go to the computer to hear audio between calls.
The price. It is a great device but the price still makes me pause at times.Other stuff to think about:1. This is strictly for office or home-office use. You CANNOT take it with you in the car. It needs to be within a reasonable range of the base station.2. Uses DECT.
It is one of the best wireless headset I have used in long time - range is excellent, call quality is excellent. Two primary reason for not giving it 5 stars is:1. My cellphone won't automatically connect with it when I walk into my house - I have to press some buttons to make that happen - quite irritating2.
I bought 3 sets for our new office. 1 of the headsets did not work out of the box. 1 other headset was working fine, but all of a sudden stopped working this morning after less than 2 months. When the headset was switched with another base in the office, it resumed working but it wouldn't work with the base that it came with.My headset, when docked with the base, also has a habit of turning itself on and off without me doing anything.
Answer: Yes it is. But personally i did not like 8.1 and reverted to 8