The Sennheiser MKH 8020 is a small diaphragm omnidirectional microphone. It is designed for use in a variety of recording and sound reinforcement applications, including field recording, live sound, and studio recording. It is known for its excellent sound quality, low self-noise, and wide frequency response. The MKH 8020 is highly sensitive and can pick up subtle details in sound, making it suitable for recording acoustic instruments and other delicate sounds. It is also resistant to wind and handling noise, making it a good choice for outdoor recording.