The SM86 has a condenser microphone capsule. Condenser microphones are more sensitive, give a smooth, natural sound and need to be powered (48V Phantom power).
Picks up most sound in front of the microphone and some from the sides. It is less susceptible to feedback in high volume environments.
Pickup pattern which isolates the main sound source while minimizing unwanted background noise, making it ideal if working with stage monitors and in-ear monitors. It has an extended high frequency response, 15Hz – 18kHz and a high maximum sound pressure level (SPL) of 124dB.