Computer Trackball Mouse with Presenter and Operating Distance of 30 feet

Key Specifications/Special Features:

2.4GHz ISM band radio frequency
8 channels with 4,096 IDs per channel avoids interference
Operating distance up to 30 feet (10m)
Patented optical trackball
Advanced power saving management
Error detection ability
Mouse left and right keys
Page up and page down keys
Built-in laser pointer
Windows ME/2000/XP compatible
MAC OS X (10.2 compatible and later edition)
CE and FCC approvals
Dimensions (L x W x H): 128 x 50 x 44mm