1515
All the other brands went along
(slrpnk.net)
This is a most excellent place for technology news and articles.
I've found that while Bluetooth works well enough, my admittedly cheap Bluetooth mouse has an ever so slight lag to it. I only use it when out in the field working but it's disconcerting to say the least.
I’ve seen the same before as well. Strangely enough though, my newer MX Master 3S at my office seems to jitter less when using Bluetooth compared to my older Master 3 (non-S) at home.