Description The MSA7500CB is a 22″ boom arm with a 7″ adjustable mini boom arm designed for use with the popular OSRS7500 Tiltback Amp Stand. Full articulation allows any style of microphone to be positioned for close or medium distance miking. The proven Posi-Lok clutch design is safe to use with even the most valuable microphones. Includes 2 cable clips to secure loose microphone cords. Includes arm only. amp, mic, cable, mic clip not included