Telescoping microphone boom arm. Iron and plastic construction. 18" maximum arm reach. 0.63" - 27 mic clip threading. 5 Lbs. maximum weight capacity. C-clamp mount (2" maximum grip) Audio-Technicas stringent quality and consistency standards set the AT2020 apart from other mics in its class. Its low-mass diaphragm is custom-engineered for extended frequency response and superior transient response. With rugged construction for durable performance, the microphone offers a wide dynamic range and handles high SPLs with ease. The AT2020: the new standard for affordable side-address studio condensers The Samson MBA18 Microphone Boom Arm is the perfect microphone accessory for any radio, podcast or home studio setup. The telescoping design of the MBA18 provides a maximum horizontal/vertical arm reach of 18", giving users convenient flexibility with their mic placement. The mic book arm easily attaches to a table or desk via its C-clamp mount, which offers a maximum grip of 2". In combination with its iron and plastic construction, the MBA18 offers 0.63" - 27 mic clip threading that can accommodate any mic weighing up to five pounds.