15 PROGRAMMABLE CONTROLS: include six thumb buttons; fully programmable with G HUB software DUAL CONNECTIVITY: Toggle between convenient Bluetooth and ultra-fast 1 ms LIGHTSPEED advanced wireless technology. HERO 16K SENSOR: Extremely accurate tracking, class-leading power efficiency enables up to 240 hours of high-performance gaming with one AA battery DUAL MODE HYPERFAST SCROLL WHEEL: Durable metal scroll wheel switches between hyper-fast and ratchetted scrolling. Programmable scrolling lets you apply keybinds 240 HOURS WITH ONE AA: efficient HERO 16K allows for 240 hours in LIGHTSPEED mode or up to 5.5 months in Bluetooth mode