Razer’s new $69.99 Orochi V2 is a wireless gaming mouse that promises extremely long battery life. It can apparently last up to 950 hours on a single AA battery when it’s in Bluetooth mode or up to 425 hours if you toggle its wireless switch to use the 2.4GHz Hyperspeed mode that can deliver lower-latency performance.
Alternatively, you can use an AAA battery for a slightly lighter weight. Razer says you’ll get approximately a third of the longevity this way compared to an AA battery. Still, it’s nice that either size of battery can power this mouse for many, many hours. Razer includes a USB-A dongle near the battery slots, which is accessible by lifting up on the mouse’s magnetically attached shell.