Battery Life: Up to 950 hours (Bluetooth) / 425 hours (2.4GHz) Weight: 60g (65g with battery) Unlike a lot of other wireless gaming mice, the Orochi V2 is completely battery-powered, supporting either AA or AAA batteries depending on what you have to hand. There are compartments for both underneath its easily-removable shell (along with a small cut-out to store its wireless USB dongle), and Razer say you'll get up to an impressive 425 hours out of it when it's connected to your PC over 2.4GHz wireless, or a stonking 950 hours over Bluetooth LE. Compare that to the 60 hours you'll get on my current favourite wireless gaming mouse, the Logitech G Pro Wireless, without its RGB lighting flashing away (or 45 hours with it on), and there's simply no competition.