??Specifications:
* RF carrier: 2402-2480MHz
* RF operation channel: 16? auto frequency hopping
* USB: USB 2.0
* Operation systems: Windows 2000? Me? XP? Vista? Win 7 and Mac
* Power: 2pcs AAA battery (not included)
* Color: Black?Red?Blue?White
Package Included:
* 1 x 2.4GHz Wireless Optical Mouse
