[. . . ] [. . . ] Also, this mouse features smooth, maintenance-free optical tracking, a convenient scroll wheel and a mini USB receiver, which is easy to carry and store for mobile users. Moreover, Genius designed the mouse buttons to be integrated into a seamless enclosure. The crystalline black body and the translucent magic roller make a great eye-catching design. Key Features No cord design Work at full 360 efficiently with RF Digital Radio technology Mini USB receiver easy to store Body cover includes buttons - no distinguishable button Advanced high precision 800 dpi optical sensor System Requirements IBM PC Pentium 233 compatible or higher Windows 2003/XP/Me/2000/98, Mac OS 8. 6 or higher Available PS/2 or USB port CD/DVD-ROM drive for software installation Mini USB Receiver RF Cordless Technology Package Contents Wireless Traveler SE2 mouse Mini USB receiver MouseMate software CD driver USB to PS/2 adapter AA baterry 2 User's guide Shipping Information PCs/CTN: 40 pcs CUFT/CTN: 5. 94 CUFT PCs/20'container: 6, 720 pcs Dates Available Sample: Feb. , 2005 Mass Production: Feb. , 2005 1/2 Wireless Traveler SE2 Stylish Wireless Optical Mouse Comparison Category Wireless Model Name NetScroll+ Traveler SE Wireless Wireless Mouse Traveler SE2 (New) Wireless Navigator Wireless NetScroll + Traveler Wireless NetScroll+ Superior Package Interface Support PS2 USB Yes Yes Yes Yes Yes Yes Yes Yes System Support Win 2003/XP/Me/2000/98 Mac OS Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Specifications Number of Buttons Optical Resolution RF Wireless Technology Rechargeable Extra Faceplate Battery 3 800 dpi 27 Mhz AA×2 3 800 dpi 27 Mhz AAx2 6 800 dpi 27 Mhz Yes, 2 AA×2 3 800 dpi 27 Mhz Yes AA×4 10 800 dpi 27 Mhz Yes AA×4 2/2 [. . . ] [. . . ]