The COSI is very easy to use. A quarter turn locking system makes attaching & detaching the microphone a breeze. Due to its size and weight it's ideal to go from indoor to outdoor locations and vice versa. The swivel is designed with efficient and effortless tightening in mind. The XLR-holder is plug-on friendly. The violin screws makes it possible to fully rotate the plug-on transmitter or to move it over or under the boom mic. Another feature of the COSI is it's strong adaptability, it fits almost any camera or DSLR.