Unfortunately, it doesn't have an internal battery, so you need to stay within reach of a power outlet, but when used in an office setting, that shouldn't be a problem.
O di nwute, o nweghi batrị n'ime ya, ya mere i kwesiri iguzo n'adighi ike, ma mgbe ejiri gi mee ihe n 'ulo oru, o kwesighi ibu nsogbu.