With the CPS Chalkboard you'll get:
Freedom to teach from anywhere in the classroom
Stylus with built-in laser pointer
Wireless operation of Microsoft Word, Microsoft PowerPoint, and Internet browsers
Ergonomic design and high performance
30-foot range for unhindered movement
20-hour battery life
One-year warranty

Requirements for PC:
Windows 2000 or Windows ME or Windows XP
Pentium II
USB Port
CD-Rom Drive

Requirements for Mac:
Mac OS X
G3 Processor
USB Port
CD-Rom Drive