Used Condition. The Vintage AKG D 320 B Hypercardioid Instrument and Vocal Microphone is a dynamic microphone manufactured by AKG in Germany. It features a hypercardioid polar pattern, making it ideal for capturing clear and focused audio from instruments and vocals. This model is known for its high-quality sound reproduction and durability, making it a popular choice among musicians and audio professionals. The included case provides protection and easy storage for the microphone, ensuring its longevity in professional settings.