Pelouze PS2R1-P 2-lb.Capacity Programmable Digital Postal Scale, 5 x 4-1/2 Platform 2-lb. Capacity User Programmable Digital Postal Scale weighs items in 4-oz. increments. USPS rates are manually reprogrammed by user by an electronic process. Scale is powered by Six AAA Batteries (sold separately) or optional AC Adapter ADPT2 ( sold separately). Auto shut-off. Adjustable stand. Calculates U.S.P.S. First Class, Priority and Express Mail rates. Intended for private use only; not legal for trade. 2-lb. Capacity User Programmable Digital Postal Scale weighs items in 4-oz. increments. Auto shut-off. Adjustable stand. Calculates U.S.P.S. First Class, Priority and Express Mail rates. Intended for private use only; not legal for trade. USPS rates are manually reprogrammed by user by an electronic process. Scale is powered by Six AAA Batteries (sold separately) or optional AC Adapter ADPT2 ( sold separately).