This Bluebird has about 55 - 70hrs of use time. It’s an amazing mic for vocals male and female. Pair with the right preamp and it’s golden. The mic is in perfect condition comes with spider shock mount and original box and quality control certification certificate. With its unique look and highly versatile performance, the Bluebird has been designed to deliver the same high-quality, no-compromise audio that Blue users have come to expect. The Bluebird is a large-diaphragm cardioid condenser, utilizing Blue’s renowned microphone technology and Class-A discrete circuit. Blue engineered the Bluebird to be as versatile as possible, with applications ranging from vocals to electric and acoustic guitars, close-miking of drums, drum overheads, percussion, piano, horns, strings, and any other application where crystal-clear sound quality and detail is of the utmost concern.