Awesome full color printing. Not a sticker or wrap Sleek enough for travel, large enough for comfortable desktop use. New micro-transmitter stores inside mouse. Advanced power management and on/off switch for long battery life; Reliable 2.4g wireless micro transmitter; Easy plug-and-play installation; Mac and PC compatible; 2 buttons + scroll wheel/third button; Warranted against manufacturers defects for 1 year from date of purchase. Printed in the USA; Runs off 2 AAA batteries (included) | * Requires Mac OSX 10.0 or newer, Windows XP service pack 2 or newer. | Requires 1 available USB 2.0 port. | Dimensions: 4" long x 2.2" wide x 1" tall.