JabraSpeak 510 UC Wireless Bluetooth Speakerphone – Outstanding Sound Quality, Portable Conference Speaker for Holding Meetings Anywhere - Certified for Zoom & Google Meet

I was told a year or so ago that this Jabra was a good device... I had spent several weeks working remotely in Europe and after spending hours on the phone with ear buds... then with over-the-ear headphones that had an integrated microphone... and feeling like my ears were full of hot sweat and realizing that no matter how comfortable something feels at first... after hours even a soft pillow can start to hurt, I felt like there had to be something better. I quickly forgot about the Jabra devices until I was again at a meeting in a hotel without a speakerphone. We had to dial someone in and the connection was terrible. People had to lean over the phone and shout directly at the thing just to make themselves heard.Anyway... flash forward a few months and I happen to be a in room with our IT group. One of the guys was zipping this thing up into the little case and it reminded me that I should check it out. I decided to go ahead and order one.All I can say is WOW!! This thing connects to my iPhone 6s Plus with no problems whatsoever. I have also used it at work to connect directly with the USB cable for use with computer audio. One thing I have found is that the computer audio itself is usually the weak link. I have used some services in the past (Lync) and had little problems... others (GoTo something...) have had bigger problems. This has had nothing to do with the speaker.I am once again in Europe and have used this thing for approximately 40 hours of teleconferences back to the states. The call quality is pure and crisp and plenty loud for me working at my little home-away-from-home desk. The battery life is tremendous. I have only plugged it into charge a couple of time and neither time was the thing even half-way drained. I know that the answer/hang-up buttons only work with real phone calls. I have been using Skype to dial real numbers. I don't think it is a limitation of the device so much as a limitation of Skype and bluetooth perhaps. I don't even find it to be a nuisance because the ability to have a clear and crisp conference call with a speakerphone like this is really just fantastic. It is now going with me on every single work trip. I even bought one for my spouse.I can honestly say that if you are going to be working remotely (out of the country)... then your go-bag should have this device... a phone with international data for Skype (T-mobile has a great plan these days... unlimited data in 140 countries included with a regular plan)... and perhaps a Skype calling plan (unlimited calls back to the US for 3 months). If you toss in a small keyboard and perhaps a USB-powered monitor... you basically can have an office anywhere in the world that is fully functional and doesn't give you head or ear aches.This thing is a winner for me... it has been exhaustively tested...I don't write a lot of Amazon reviews, but this thing is really that good and worth my time writing up.Only real downside? The case that comes with it is a tiny bit snug. It works just fine... I had to search to find a gripe.Now I need to prep for 7 hours of calls coming up in 30 minutes!

I had another USB speakerphone that this replaced. That one wasn't bluetooth enabled, and that turned out to be a significant game changer for me.I'm a remote worker, and I spend a lot of time on the phone. The things that I love about this speaker is that it works with my PC (via USB) and my phone (via BT) simultaneously. It also functions as a basic mono speaker (I have no other speakers connected to my PC). The best thing about it is the smart button, which I've programmed to bring up Siri. Before, when I needed to make a call... pickup phone, unlock, open contacts, find contact (or punch in phone number). Now, tap smart button, tell Siri what I want. Yes, I can call up Siri on my phone directly, but it's just not as simple or easy as tapping that button.Clarity on both ends is great. I've asked a few people on the other end, and nobody can tell I'm on a speaker. There's plenty of volume if you need to fill a medium sized room, and overall sound quality is very good.The speaker claims to work with many conferencing apps, and it does work, but I wouldn't say it's integrated. For example, if I tap the mute button, the speaker mutes, but the conferencing app doesn't. Not really a problem since I'm still muted, but there's always that moment of, "am I muted?" if I look at the app. I just have to remember to look at the speaker which clearly shows you're muted by lighting up all the red LEDs around the perimeter of the device. Speaking of the lights, they're all very well thought out. Lights to let you know it's on, that BT is on. Lights that come up in sequence to show the volume setting, and whether you're on an active call, and lights to indicate the battery level. They're all uniquely different and easy to intuitively understand.I also like that it's easy to turn BT on/off with a tap of the BT button. Connection establishment happens fast, to the point that I can turn it on and answer a call after the phone has started ringing (if I'd forgotten to turn it on previously).I haven't tested battery life since it stays plugged in at my desk. Though, even if it only got half of the 15-hour claimed talk time, that would be more than enough to get me through a typical days calls.The only thing I'd change about the device is the placement of the mute/power buttons. The four buttons I use the most are answer/end/mute and the smart button. I would've swapped the positions of the mute/power buttons so that mute was between answer/end. Then all four common use buttons would be right next to each other. As it is, the mute button is "far away" relative to the other buttons. Of course, this is a very minor nitpick, and doesn't change my overall opinion of it, but there you go.