Brand: Logitech Model/PN: M280 (910-004287) Type: Wireless Type Of Sensor: Optical Max. Speed: 1000 Wireless Dongle: USB Type Of Battery: 1 x AA Battery Life: Up to 18 months Color: Black Dimensions (Height x Width x Depth): 67.9 x 38.4 x 105.4 Weight: 91 Warranty For Individual Customer: 12