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Extended battery life: Batteries can last up to 24 months, among the longest in the industry
Laser tracking: Delivers smooth, responsive, precise cursor control, even on polished or wood-grain tables
Unifying receiver: Tiny Logitech Unifying receiver stays in your notebook
Ergonomic design: The mouse shape with soft rubber grip conforms to your hand to be naturally comfortable
Cordless convenience: Advanced 2.4 GHz wireless gives you the reliability of a cord plus cordless convenience and freedom
Logitech Wireless Mouse M505 Black Black B00325ME7W