Set at a cost of 2,250 credits, the AR-2Bs had a humanoid body shape and were designed specifically for menial labor, in the home, the office or the industrial site. They could understand instruction given in Basic, but had the tendency to be exceptionally literal-minded. Their rudimentary vocabulator allowed them to speak Basic, but their voice was harsh and buzzing and obviously synthetic. Those droids had a vocabulary of only 300 words. AR-2Bs were equipped with a C3-DD NeuroNet brain which was incapable of abstract thought of understanding hypothetical reasoning.