Note: The USB Receiver is packaged in the Mouse, open the battery cover then you'll see it (As the picture show).

Wireless USB Optical Mouse

Tracking method: Optical

Intelligent network functions

Interface: USB 2.0

High Resolution:1600-2000DPI

Mouse Power : 2 ¡Á AAA Batteries (not included)

System Compatibility: Windows 98 / ME / NT / 2000 / XP / Vista / Win 7 / Linux or Mac OS

Package Included:

1 x Wireless USB Optical Mouse

1 x USB receiver