The ST4011C Stereo Pair with 4011C Compact Cardioid Microphones from DPA is a kit that contains two 4011C Microphones, two microphone holders, two windscreens, and a Peli carrying case. The microphones are matched within ±1 dB on both frequency response and sensitivity, providing accurate sonic reproduction from both microphones. The 4011C’s cardioid polar pattern and compact design allow them to be used as spot mics for classical recording or close mics for live applications.