Cheapest on staticice is $57
The World’s Smallest USB Receiver
Plug-and-forget nano-receiver: Barely larger than a coin, the receiver is so tiny you can plug it into your notebook just once – and forget about it.
Small, yet powerful: Expect a robust wireless connection with advanced 2.4 GHz cordless technology.
Always ready: Leave the nano-receiver plugged into your notebook—your mouse is always ready.
Protective pouch: Use the stylish pouch to protect your mouse when it’s not in use.
Longer battery life: Get up to 6 months of use (or longer with the convenient on/off switch).**
Control and Precision
Hyper-fast scrolling: Fly through long documents at hyperspeed with the nearly frictionless scroll wheel, or shift instantly to precise scrolling.
Forward/backward buttons: Effortlessly navigate the Internet with Forward and Back buttons.
Five programmable buttons: Customize the mouse controls to fit your needs with included SetPoint software (or, for Mac® users, with downloadable Logitech® Control Center software).
Laser precision: Experience smoother cursor control on virtually any surface.*** The VX Nano outperforms ordinary optical mice.
This is a seriously good mouse for 40$. Having used mine as the main mouse for an entire year, my only gripe is that the scroll wheel, while able to click left and right, cannot be used as a middle button. Battery lasts as claimed even with decent use.