Contoured design: Comfortable shape with soft side grips

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Logitech Advanced Optical Tracking: Enjoy point-and-click precision and smooth scrolling

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Unifying Receiver: Robust wireless connection with one tiny USB receiver that stays in your laptop

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Long battery life: Up to 12 months of battery life virtually eliminates the need to change batteries

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Wide compatibility: Works with Windows, Mac and Linux computers

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Point-and-click precision
With Logitech Advanced Optical Tracking, you have the accurate cursor control you need to do everything on your laptop more quickly and easily.
Plug-and-forget wireless receiver
Logitech's tiny Unifying receiver instantly connects the mouse to your computer-and up to five more compatible wireless mice and keyboards-using just one USB port. The receiver is so small, it can stay in your laptop. And robust 2.4 GHz wireless gives you cordless freedom plus the reliability of a wired connection.
Contoured comfort
Enjoy a hand-friendly contoured shape, soft rubber grips and smooth scroll wheel that keep your hand feeling comfortable, even after long hours of use. It's all the comfort and quality you'd expect from Logitech, the worldwide leader in mice.
One year of power on one battery
Say goodbye to the hassle of always having to change batteries. A single pre-installed AA battery powers your mouse for up to 12 months. A convenient indicator light also eliminates surprises by making it easy to see when the battery is running low. *Battery life may vary based on user and computing conditions.
Features:

2.4 GHz Wireless

On/Off Switch

Smart sleep

Nano USB receiver

Tracking: optical

Comfortable, ergonomic design

Scroll Wheel (acts as 3rd button)

Receiver connects up to six devices

Year long battery!
Unit Dimensions:

1.3 x 2.0 x 3.5-inches (H x W x D)

One (1) Logitech m317 Wireless Mouse

One (1) Nano USB receiver