K&M extendable topline boom microphone standIntroducing the K&M extendable topline boom microphone stand in black The KM21090 is a more compact version of the classic K&M microphone stands, with a combination of all their best features, such as the long legs of the 201A 2 and the 2 piece telescopic design of the 211 1. The height is adjustable from 900 to 1605 mm and the non detachable boom arm can extend between 435 to 745 mm. The KM21090 is built from steel and has a zinc die cast base, which