The Sennheiser MMK 965-1 is a high quality condenser microphone capsule with switchable polar pattern. Sennheiser's unrivaled experience in the fields of acoustics and stage technology is evident when listening to this large-diaphragm, true condenser capsule. Its powerful, high-definition sound makes the MMK 965-1 one of the best microphone heads of all time. Due to its dual-membrane technology, the pick-up pattern can be easily switched between cardioid and super-cardioid for extreme versatility. Compatible with all hand-held transmitters from the ew G3, 2000 as well as the Digital 9000 series, it can be installed in seconds without tools. Sennheiser MMK 965-1 Specifications: Transducer principle externally polarized dualdiaphragm condensermicrophone Pick-up pattern cardioid/supercardioid,switchable Sensitivity (free field, noload) (1 kHz) 7.0 mV/Pa with preattenuation 2.2 mV/Pa (factory setting) Max. SPL at 1 kHz 144dB with preattenuation 154dB (factory setting) Dynamic range 126 dB(A) Diameter of diaphragm 2.54 cm (1") Frequency response 40 to 20,000 Hz Equivalent noise levelA-weighted (DIN IEC 651) 18 dB Weight 162g