The AKG P 4 is a dynamic instrument microphone specifically designed for capturing instruments with high sound pressure levels, such as drums, percussion, and brass. It features a cardioid polar pattern to minimize feedback and unwanted background noise. The microphone has a rugged metal body and a convenient on/off switch for easy control. It provides a frequency response of 40Hz to 18kHz, ensuring accurate reproduction of the instrument's sound. The AKG P 4 is known for its durability and reliable performance in live sound and studio applications.