This digital shipping scale from USPS is designed to make your shipping process faster and easier. With a 10 lb capacity, it can accurately weigh your packages in lb units. It has features such as overload indicator, postal calculator, TARE setting, battery, and auto-off, making it a convenient tool for your shipping needs. The scale is also energy star rated, which means it is energy-efficient and environmentally friendly. You can easily store the weight of your packages with its weight storage feature. The scale can be powered by either the included A/C power adapter or batteries.