The Fellowes HD Precision Cordless Optical Gel Mouse provides clear reception up to six feet and features a patented soft gel cushion for added comfort. Long battery life and a superior optical sensor ensure hassle-free cordless mousing. Includes 5 programmable buttons plus Fellowes EasyPoint Software (updated for Microsoft Vista). USB connectivity. Windows 98SE, 2000, ME, XP and Vista compatible. Includes 2 AA batteries.