Brand: Logitech Model/PN: M185 (910-002240) Mouse Connectivity Technology: 2.4 GHz wireless connection Type Of Sensor: Optical Number Of Mouse Buttons: 3 Scroll: Yes Max. Speed: 1000 dpi Wireless Dongle: USB Type Of Battery: 1 x AA Color: Red Dimensions (Height x Width x Depth): 9.9 x 6 x 3.9 cm Weight: 75.2 Warranty For Individual Customer: 24