Targus Wireless Optical Laptop Mouse, Black (AMW56US) Compatibility: Designed to work with PC, Mac or Netbook computers Easy Storage: Stow-N-Go USB Receiver is small enough to store inside the mouse while travelling Ergonomic: Ergonomically designed to lend hours of comfort in any size hand New Technology: High-Definition sensor Provides up to 8 months of battery life RoHS Compliant Limited warranty does not cover products purchased from 3rd party sellers