Measuring 2¾ in.x 2 in.x 1 in. and weighing less than 4oz., the Robotron Columbus is a hand-held compass with speech output. The four major points (North, South, East, and West) are spoken, as are the interim points (North East, North West, South East and South West). The user orients the compass in the required direction and queries the device by pressing the button. The compass is bilingual - the language is selected by a switch on the side. Uses two 1.5 volt 'N' batteries (included).