Bytesector posted a review on the Microsoft Wireless Notebook Optical Mouse 4000

Microsoft has been pushing its way into the peripheral market bit by bit over the last few years. In particular, they have been bringing a number of wireless models (employing either RF or Bluetooth signals) to the keyboard and mouse market. Today, I have the privilege of taking a look at their latest wireless mouse for mobile users. The Wireless Notebook Optical Mouse 4000 is a small, single AA battery powered mouse that seems to have it all.

Microsoft Wireless Notebook Optical Mouse 4000 Review