BenQ Series FK2 Item model number BenQ ZOWIE FK2 Mouse Hardware Platform PC, Mac Operating System Mac os x jaguar, Windows xp, Windows vista, Windows 2000 Item Weight 3.2 ounces Product Dimensions 4.9 x 2.5 x 1.4 inches Item Dimensions LxWxH 4.9 x 2.5 x 1.4 inches Color Black Processor Count 1 Computer Memory Type DDR3 SDRAM Voltage 1 Volts

https://www.amazon.com/BenQ-FK2-Ambidextrous-Mouse-Esports/dp/B00QIH1GD4