Huge 25-lb capacity determines correct postage for mail and parcels No need to worry about overpaying! Print postage directly from your computer. The scale transmits the weight amount via a USB cable to the PC. The program then processes the weight for postal calculation. The USB interface is designed to work with most of the current USPS application packages. The low-profile design makes the scale easy to use and store. Features a flip-up letter stand to hold large envelopes. This model has a Units key to toggle between kg/g and lbs/oz, and an On/Off/Tare key. Tare sets the scale to zero. The automatic shutoff function saves power - and enhances the scale's longevity. Features a digital display that makes it easy to view. Powered by either four AAA batteries or a USB cable (both are included). Brecknell(R) Electronic Postal Scale, 25-Lb Capacity, Pink is one of many Digital Postal Scales available through Office Depot. Made by Brecknell.