Built-in wraparound handle Detachable LCD screen allows convenient hand-held or wall-mounted viewing Connect to computer to use online mailing and shipping services Display weight in accurate easy-to-read digital format Hold feature locks weight display for 10 seconds after item is removed Tare function weighs items in a container minus weight of container Automatic shut-off when scale is not in use Powered by USB cable (included) AC adapter (included) or 3 AAA batteries (sold separately) Work with Windows 7 XP Vista and MAC OS v10.4 or later Platform size: 11-13/16 x 11-13/16 Capacity 400 lbs.