The Beyerdynamic ribbon technique represents a major technological breakthrough in microphone manufacturing. Incorporating a unique high energy transducer which has a flat frequency response of 50 to 18,000 Hz, the performance of the M 260 is approached by very few professional microphones in the upper price bracket. Due to a ribbon transducer, only 2 microns thick, with a length of 0.85" and a mass of only 0.00034 of a gram, the resultant complete absence of non-linear distortion creates startling clarity and transparency of the sound picture. The hypercardioid characteristic of this microphone is such that unwanted sound is heavily dampened reaching a maximum of 20 db at 120 degrees (normally cardioids provide greatest rejection at 180 degrees). The microphone is fitted with a readily accessible "on-off" switch. The M 260 withstands the rigors of professional use and is completely unaffected by humidity and temperatures. Unit is in great condition and functional.