Features : - Brand : Targus - Model : PAWM002 - Dimensions : 9.0 x 4.8 x 3.0 cm - Weight : 40g (only mouse) - Connectivity Technology: Wireless - Button : two buttons and a pulley - Ergonomic designed - Type : Photoelectric System requirements : - Windows 2000, xp, vista. Condition : New ( no retail packaging, no include batteries ) Pckage included: 1 x Targus Wireless Optical Mouse 1 x USB receiver 1 x user manual 1 x usb cable