Your purchase is 100% guaranteed. If you are not happy with your purchase for any reason, please contact us BEFORE leaving feedback, starting dispute, or starting return through ebay/paypal. We provide easy return solutions if you are not fully satisfied.  HP Wireless USB Mouse Z3700 (Blue/Silver) FEATURES   Slim, portable design: at 3.98 x 2.37 x 1.0 inches (101 x 60 x 25.3 millimeters), this mouse is easy to take with you. Store the USB Receiver inside the mouse on the go. 2.4GHz wireless connection: work comfortably without wires. Simply Plug the USB Receiver into your computer. Battery life up to 16 months: Keep going on a single AA battery. Blue LED technology: This mouse works on a variety of surfaces. Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse 2.4GHz wireless connection: work comfortably without wires. Simply Plug the USB Receiver into your computer.   PACKAGE CONTENTS HP Wireless Mouse Z3700 CONDITION & WARRANTY Like new condition in a poly mailer 60 days CCO warranty