The ST4006A Stereo Pair with 4006A Omnidirectional Microphones from DPA is a kit that consists of two 4006A Omnidirectional Microphones, two microphone holders, two grids, two windscreens, and a Peli carrying case. The microphones are matched within ±0.5 dB on both frequency response and sensitivity, providing accurate sonic reproduction from both microphones. The omnidirectional pattern can be used to obtain a variety of stereo miking techniques, including the AB technique.