Logitech Wave Keys & Lift Vertical Ergonomic Wireless Keyboard and Mouse Bundle - Comfortable Palm Rest, Easy-Switch Bluetooth for Windows/Mac (Graphite) - Perfect for Office Work, Home Use, and Long Computing Sessions

I'm very particular when it comes to mice. It has to be:- quiet click and scroll- scroll wheel, not track ball- bluetooth- vertical- real battery, NOT rechargeableThere are actually several mice that fit all those criteria, and I've tried nearly all. This Logitech is double the price of most of the others, but for me well worth it. Prior to this I used the Mojo which is about half the price, and that mouse is probably my 2nd favorite but it is a distant second. Compared to the Mojo and others, this mouse has more precise movement, smoother scrolling, and more reliable clicks. Because of the vertical orientation, my finger tends to click diagonally downward with gravity instead of fully horizontal in line with the intended click direction. That causes the Mojo to sometimes miss my clicks, forcing me to constrain my finger direction more carefully, often requiring several tries just to click something. But this Logitech has no such issue, it's very responsive every time even with my sloppy clicks.So while I used to think the Mojo was the best I could find given my requirements, this Logitech is clearly better. When I spend all day at the computer, these minor things make a big difference to me, therefore well worth the extra money.Also want to mention I'm 6' 4" tall and the size of this mouse is fine for me. It is a little smaller than some others, but it feels fine in my hand, it's not abnormally tiny or anything. I was concerned because the description says it's intended for smaller hands and suggested I should get their larger MX Vertical model instead. I would have considered it but the MX Vertical has a rechargeable battery which is a deal-breaker for me. What's my beef with rechargeable batteries? Earlier I had the Seenda vertical mouse but its rechargeable battery died after a year, unable to recharge, so I figured it was a fluke and bought another, and same thing happened after a few months. So after that I switched to replaceable batteries and never looked back. Replaceable batteries last forever (well, they only last a year too, but then you just replace the battery!). I've been very happy using replaceable batteries, way more reliable and durable, because all rechargeables die eventually, and it is easier to replace a battery than an entire mouse!So in summary, if you're price sensitive you could get a usable vertical mouse for less. But if you're OK to spend a little more for a tool you might well use all day for years, then this one is totally worth it IMO.