RAT 9 2.4GHz Matte Black PC/Mac Mouse. Batteries Included - 2 Lithium Ion Low-latency 2.4GHz Wireless Technology - Includes Charge Dock and 2 Lithium-ion Rechargeable Batteries. 6 Programmable Macro Buttons (18 User-definable Commands via 3 Modes). Maximize Comfort with Fully Adjustable Palm and Thumb Rests. FPS-style Precision Aim Mode.