The 2011ER Cardioid Microphone, Active Rear Cable from DPA is designed for capturing audio and can be used in various environments, including theater, recording studios, broadcast TV, and similar applications. It features a cardioid directional pattern and a frequency range of 20 Hz to 20 kHz. The microphone contains an MMP-E active cable preamp, which splits amplification and phantom power duties. Additionally, the microphone offers a modular capsule with high-quality directivity control and radio frequency interference rejection.