Wright WR 800 Condenser Microphone (Blue) Colour:Blue   This is condenser Microphone all condenser microphone require external power supply of 48v provided by phantom power ( which is another product ) but not all customer can afford to buy another product so we are giving free USB sound-card which will give 5v power supply that will be enough to operate our microphone.Apples new computers does not support external microphone since all microphone has 3 pole TRRS port this customer need external adapter of 4 pole TRRS port