The Bottle Microphone is Blue's flagship recording tool, combining low noise and superb transient response integrated with a system of eight optional interchangeable capsules (the Bottle Caps). In an instant, these bayonet-mount capsules can be exchanged to provide different tonal characteristics and pickup patterns while the power supply remains on. The Class A discrete amplifier circuit of The Bottle is a thoroughly modern homage to the past, with a design utilizing a single hand-selected EF86 pentode vacuum tube in triode mode. . Included accessories: Power Cable/Supply,Other(B6 CAPSULE).