Nacon includes a AA battery that brings back memories of having to finish my game sessions prematurely, but rather than one you’ll continuously need to replace mid-game, this battery recharges whenever you plug the 70cm micro USB cable into the GM-180. It’s unusual to see, but this provides peace of mind that you can swap it out for a fresh one if the battery isn’t up to scratch in a year or two, compared to the inaccessible built-in batteries most brands run with.
When connecting wirelessly, the mouse pairs with a small USB Type-A dongle, which can be housed in underside of the mouse for easy portability. The choice of a 2.4GHz wireless connection rather than Bluetooth is great news for lower latency, but many similarly priced wireless models give you the choice of both.