Includes: Microphone, B6 Capsule, Pre-Amp, Microphone Cable, User's Manual, and Heavy Duty Aluminum Flight Case. All the items in this kit are functionally and cosmetically perfect. As close to new as it gets and priced much lower than anywhere else in the world. All items will be securely packed to ensure the protection of your investment. We are a preferred seller with stellar feedback and quick shipper status. Don't buy from those other guys, we get the job done right the first time. The following information was taken directly from BLUE Microphones website:With its impressive size and nostalgic resemblance to the earliest European tube microphones, Bottle radiates a gravitas that inspires once-in-a-lifetime performances. Like the mics of yesteryear, the Bottle body isn’t just for looks, but also holds a small fortune in precision electronics.Bottle’s internal circuitry is thoroughly modern, with a fully discrete Class A tube circuit powered by a hand-selected EF86 pentode vacuum tube in triode mode for distinctive warmth and saturation. The hand-wound transformer—made of silver wire around nickel plates—delivers precision and accuracy due to the high conductivity that silver offers. Bottle utilizes electronic components of tthe highest quality (such as expensive metal-film resistors), with absolutely zero pad or low-cut filter switches in the microphone circuit. In short, this is a signal path of the highest possible quality, allowing you to get the maximum benefit out of the unprecedented capsule selection we’ve created.Every Bottle microphone comes with our signature B6 large-diaphragm dual-backplate cardioid capsule. B6 holds the honored title of the “Blue Standard” and delivers larger than life sound with enhanced lows and extended high frequency response. It’s the ideal capsule for recording lead and background vocals, percussion, and guitars—all with detailed sonic dimension and character. And when you want to modify the tone and sonic signature of your Bottle, just swap the B6 for one of the interchangeable Bottle Caps to achieve any sound imaginable.The Power Stream is more than a precision-engineered power supply that delivers clean, extremely consistent power to the Bottle. It’s also an innovative and creative tool for fine-tuning the Bottle’s sound. Both the heater and the plate voltages are ultra-stable and non-dependent on AC changes of fluctuations. For AC rectification, the Power Stream uses only high-frequency diodes to obtain the purest DC possible. And most importantly, the plate voltage supply is of low impedance, which improves sonics and clarity. All the potentiometer switches on the Power Stream are discrete military grade with enclosed contacts.