I am selling this microphone as I no longer use it and have been storing it at home. There are no operational issues. This is a vocal condenser microphone that incorporates numerous technologies. ● The dual-diaphragm design, with two diaphragms placed closely and parallel to each other, minimizes the proximity effect, allowing for clear sound capture across all frequencies. ● Equipped with a Class-A discrete transformerless preamp "Prethos™". This eliminates crossover distortion and keeps harmonic and intermodulation distortion extremely low, enabling clear sound capture. ● The diaphragm is made of φ25mm Mylar® with 24-karat gold vapor deposition. It is thin and lightweight, responding quickly to changes in audio signals, thus reproducing even the subtle nuances of vocals. ● Includes the proprietary "ShureLock" suspension shock mount. The dedicated pop screen "Popper Stopper™" can be easily attached with magnets. It also features a high-performance built-in shock mount and a three-layer mesh filter.