DPA Microphones ST2015A - Stereo Pair of 2015 Microphones with Accessories and CaseIn a live situation when a conventional cardioid pattern isnt quite open enough, choose a pair of 2015 Compact Wide Cardioids. They work ideally as overheads to capture a balanced sound of the entire group of instruments, like a drum kit. Also, when recording instrument groups with complex radiation patterns, the wide cardioid (also known as hemispheric, subcardioid or hypocardioid) design covers a greater sound angle and is an excellent choice.