This JLab JBuds Ergonomic Wireless Mouse is down to $34 right now at Amazon, $6 under its regular price. It offers 7 customizable buttons, adjustable DPI up to 2400, and the ability to switch between 3 paired devices, all in a vertical design meant to ease wrist strain. Prime memebers get free shipping, too. Buy Now at Amazon
Features
Connects via 2.4 GHz USB dongle or Bluetooth Switches between 3 paired devices with one click 7 programmable buttons with adjustable DPI from 1200 to 2400 3 saved profiles selectable through the companion app 600 mAh battery Vertical ergonomic design for wrist comfort
