Speaker is such good quality, both speaking into and hearing as a loud speaker conference room style.....The microphone annoys me,...if you don't constantly put it on mute, it reverberates loud and crazy....I love it........The 510 I bought was refurbished, cheap like $75 vs $150 new.......

We used this for a conference call web meeting. The setup was quick and easy. The sound quality and ability for the caller to hear us was phenomenal. Great buy!

Does everything it says, and more. It's a powerhouse in a small and very portable compact size. A no-brainer to install ... just plug in the USB cable that stores by wrapping around it, and you're good to go. All device drivers install automagically, and the Lync-optimized features are active.

I plugged the Jabra unit into my computer and it automatically recognized the device and prompted me to use it on my communications applications. I didn't have to load any software. This was truly Plug 'N Play. Sound quality is exceptional and the microphone is amazing clear.

It was easy to setup, with a company locked down Windows 10 client. I use with both WebEx and Cisco Softphone over wi-fi and fibre home broadband. The sound quality is excellent in terms of both hearing other participants in a call, but also verified that people can hear me without any issues - eg...

very good for conference calls over voip.

I received one as a gift a year or so ago and I have never loved a speaker phone so much before this! My company uses Lync phone services so making calls my PC is the norm and this just makes that experiance even better.

nothing

Great little speakerphone. Just plug it in and it works. Much better audio quality than the built in mic and speakers in my macbook.

There is noise when a call is stablished Volume control not stable (goes from high to higher by itself) Should have an option to connect a headset if needed.

Portability; Price

Lack of jack for headset; Noise on stablished calls

Works well as a conference room speaker/phone. Not quite as good as some of the reviews have claimed but useful for Skype and better the in-built speaker and mic on the laptop alone. Good value for money compared with more specialist conferencing equipment.