For a mobile printer it is slightly on the heavy side at 2.5kg with the battery installed, but with the extra weight you get some extra options not on other mobile printers.
The printer has a 50 sheet input tray. The battery has enough power for printing up to 500 pages. Duplex printing is possible but only manually.
The printer supports Bluetooth, standard USB, as well as supporting the Camera and Imagine Products Association PictBridge standard so you can print directly from your digital camera.
Printing speed is 3.5 pages per minute color and 5 pages per minute for black only documents.
The print quality overall was good for the HP Officejet 100.