Engage 75 Mono

If you are going to be off camera then I would go with a Jabra DECT headset with a flip down mic. The DECT headsets have much better range than Bluetooth and Jabra does a great job with noise cancellation and background noise rejection. I prefer a single sided (mono) headset as they are lighter and allows me to hear what's going on in my surroundings. I used the same Jabra headset for 7 years before switching to the internal mic in my Macbook Pro. I briefly used wireless earbuds but they weren't as nice to use as the dedicated headset. I now only use earbuds when traveling and can't get to a quiet area. 

Jabra Engage 75. You want DECT and not Bluetooth if you're a pacer. Its got much better range. I can walk all over with mine.

I have a Plantronics 8210, Yealink WH64, and Jabra Engage 75. The Jabra blows them all away, better functionality, sound quality, and especially comfort. Jabra is the only one I could wear all day, the Yealink is tolerable for occasional use and the Plantronics is unbearable, the ear cushion gets very hot. Consider DECT if you need the range or have to compete for Bluetooth bandwidth.

Jabra Engage 75, best ever.

I've been using the Jabra Engage 75 for years, nothing but good things to say about it. Like the worse thing that happened was the earcup wore out so I got a new one. I'm also deeply impressed with the Yealink BH76plus. I use that when it's super loud because the noise cancellation (both what I hear and the other side hears) is unmatched - it's like having a private convo. The only thing I don't like is 2 ear coverage with that one, but it's needed for the ANC to work.