The Bottle is Blue's flagship recording tool and its highest achievement in quality and innovation. It combines low noise and superb transient response integrated with the Bottle Caps interchangeable capsules. In an instant, the bayonet-mounted caps can be exchanged to provide different tonal characteristics and pickup patterns while the included power supply remains on. The amplifier circuit of the Bottle is a thoroughly modern homage to the past, with a design utilizing a single hand-selected EF86 pentode vaccuum tube in triode mode. With hand-assembled custom components found throughout, the Bottle is the definition of craftsmanship. It provides the ultimate recording experience for any application. Designed for the most discerning recordists, the Interchangeable Capsule series contains microphones capable of providing a wide palette of tonal characteristics and pickup patterns to satisfy even the most discriminating tastes. The series integrates the best of Blue's discrete Class A circuitry with a unique and revolutionary system of interchangeable capsules that provide the engineer a wide range of potential tonal characteristics. This series is employed in the world's most respected studios, and is recognized by industry insiders as the world's premiere microphone system.