Dymo mailing scale features a "hold" function which locks the weight display for 10 seconds after the package is removed, useful when a large package blocks your view of the display. When items are weighed in a container, the "tare" function subtracts the weight, showing only the weight of the items. Automatic shut-off when scale is not in use prolongs battery life. Capacity up to 11 kg (25 lb.); displays weight in 2 oz. increments; runs on 3 AAA batteries (not included) or USB power from computer (USB cable included). *Works with Windows 7 or later and Mac OS X v10.8 or later. 1-Year Limited Warranty. Digital USB postal scale weighs envelopes and packages up to 25 lb. (11.34 kg) - without a trip to the Post Office or mailroom. Scale connects via USB cable (included) to PC or Mac to use scale with popular online mailing and shipping software - including Endicia InstaRate and DYMO Stamps software. Compact size fits in busiest work space and stores in most desk drawers. LCD screen displays weight in accurate, easy-to-read digital format - in lb./oz. (0 lb 00.0 oz) or kg/g (0 kg 000g). Conveniences include a hold feature, tare function and an automatic shutoff that prolongs battery life. Hold feature locks the weight display for 10 seconds after item is removed from the 8" x 8" weighing platform. This feature is especially useful when a larger package or envelope blocks the display. Tare function weighs items in a container minus the weight of the container. The M25 Digital USB Postal Scale runs on USB power from your computer or three AAA batteries (not included). General Information Manufacturer:Newell BrandsManufacturer Part Number:1772059Manufacturer Website Address:http://www.newellbrands.comBrand Name:DymoProduct Model:M25Product Name:Pelouze DYMO Digital USB Postal ScalesMarketing Information:Digital USB postal scale weighs envelopes and packages up to 25 lb. (11.34 kg) - without a trip to the Post Office or mailroom. Scale connects via USB cable (included) to PC or Mac to use scale with popular online mailing and shipping software - including Endicia InstaRate and DYMO Stamps software. Compact size fits in busiest work space and stores in most desk drawers. LCD screen displays weight in accurate, easy-to-read digital format - in lb./oz. (0 lb 00.0 oz) or kg/g (0 kg 000g). Conveniences include a hold feature, tare function and an automatic shutoff that prolongs battery life. Hold feature locks the weight display for 10 seconds after item is removed from the 8" x 8" weighing platform. This feature is especially useful when a larger package or envelope blocks the display. Tare function weighs items in a container minus the weight of the container. The M25 Digital USB Postal Scale runs on USB power from your computer or three AAA batteries (not included). Packaged Quantity:1 EachProduct Type:Digital Postal Scale Technical Information Maximum Weight Capacity (Imperial):25 lb (11339.81 g)Maximum Weight Capacity (SI):24.25 lb (11000 g)Maximum Height Measurement:2" (50.80 mm)Measurement Type: Kilogram Pound Application/Usage: Packages Envelope Letter Home Small Office Features: Auto Shutoff Tare Adjustment Hold Lock in Weight Display & Graphics Display Screen Type:LEDNumber of Characters:2 Battery Information Number of Batteries Supported:3Battery Size Supported:AAA Power Description Power Source: Battery USB Physical Characteristics Color Family:SilverProduct Color:SilverWeight (Approximate):4.25 lb (1927.77 g) Miscellaneous Package Contents: M25 Digital USB Postal Scale USB Cable Recycled:NoAssembly Required:NoCountry of Origin:China Product Numbers: 1772059 071701058478 DYM05847 165803 DYM1772059 DYMM25