750 dpi Ergonomic design feels great in your hand 3D with scrolling wheel & 2 buttons Compatible with Windows 95/98/Me/NT/2000/XP One year limited warranty /Retail package Availability: Usually ships the same business day M-04BRegular price: $9.99Sale price: $2.00, 10/$15.00 Secure On-Line Ordering Site Tel: (888) 860-4416 Fax: (732) 416-8788 sales@pctekonline.com Business hours are from 10:30am to 7:00pm EST Monday to Friday 3 Kellogg Court Suite 11 Edison NJ 08817 Copyright (C) 1997-2011, PCTekOnline.com All rights reserved. Thank you for shopping at PCTekOnline.com !