Comfortable full size mouse with soft side material; Ergonomic design reduces thumb fatigue; Blue optical sensor tracks on most surfaces; 2-way scroll wheel (up / down) with configurable scrolling speed; On-the-fly DPI (three stages) adjustable via software up to 4000 DPI; Quickly connect with Bluetooth 5.1 and Swift Pair support; Cycle between paired devices with the Bluetooth pairing button; Get 3 months of use from a 2 hour refuel of the rechargeable battery; Programmable side and top buttons for custom shortcuts; Three-year long-term warranty