The Logitech G604 Wireless Lightspeed Optical Gaming Mouse in Black.

Features:

• 15 programmable controls: include 6 thumb buttons; fully programmable with G hub software
• DUAL CONNECTIVITY: Toggle between convenient Bluetooth and ultra fast 1 mms LIGHTSPEED advanced wireless technology. Bluetooth report rate: 88 133 Hz (7.5 11.25 ms)
• Hero 25K sensor through a software update from G HUB, this upgrade is free to all players: Our most advanced, with 1:1 tracking, 400-plus ips, and 100 - 25,600 max dpi sensitivity plus zero smoothing, filtering, or acceleration
• DUAL MODE HYPERFAST SCROLL WHEEL: Durable metal scroll wheel switches between hyper fast and ratchetted scrolling; Programmable scrolling lets you apply key binds
• 240 HOURS WITH 1 AA: efficient HERO 16K allows for 240 hours in LIGHTSPEED mode or up to 5; 5 months in Bluetooth mode