TARGUS AMU40US Retractable Optical Stow N Go Lapto TARGUS AMU40US Retractable Optical Stow N Go Laptop Mouse. The Targus Retractable Optical Stow N Go Laptop Mouse incorporates tilt wheel technology that allows you to scroll side to side, as well as up and down for efficient viewing of spreadsheets, photos, web pages and more. The mouse also provides adjustable cursor speed with a one touch button that allows you to switch between 16001200800 DPI settings. For easy cable management the 2.5 foot retractable cord is adjustable so the length will always work with your workstation whether at home or on the go. The cable also attaches to the bottom of the mouse making it easy to pack the mouse without damaging the cord. Approximate Unit Weight 2.6 oz.