This simple weight only electronic scale is perfect for letter and small parcel mail to ensure correct postage without overpayment. The low profile design is easy to use and store. Features a flip-up letter stand to hold large envelopes. Functions include units (kg, g, lb/oz) and On/Off/Tare key. The USB interface is designed to work with most of the current USPS application packages to print postage locally from PC. The scale transmits weight calculations. Constructed with ABS plastic and available in blue, gray and pink. Operates on four AAA batteries or USB cable (both included).