The Earthworks Drumkit Microphone System for Live Performance has three SR25 Cardioid Microphone, two for overheads and one for kick drum, a KickPad, Windscreen and case. The patented cardioid pattern on the SR25 provides a more uniform off-axis response and has less susceptibility to acoustic feedback. The DK25/L is also ideal for use with multi-miked drums (four or more mics) in either live or studio applications. In such cases it is recommended that two SR25s are used for overheads.