GIGABYTE KM7580 Black 15 Function Keys 2.4GHz Wireless Keyboard - Retail Mouse Included: Yes Mouse Interface: 2.4G USB Tracking Method: Optical Function Keys: 15 Power Supply: 2 AAA Batteries Distance: Up to 5 meters Dimensions: Keyboard: 16.73 x 6.1 x 0.98 Mouse: 3.86 x 2.32 x 1.38