Rode NTK Tube Cardioid Condenser Microphone Amazon as the seller is the ONLY authorized Fulfilled by Amazon Dealer, and purchases from unauthorized dealers carry No Warranty A premium valve condenser microphone designed to provide incredible detail and warmth in the studio The cardioid polar pattern is perfect for most single instrument recording scenarios The electronic circuitry complementing this very sensitive transducer includes a hand-selected twin-triode 6922 valve and audiophile grade components Features an ultra-wide dynamic range, low noise, and stunning tube warmth The rich valve sound is ideal for vocals, acoustic instruments, drum overheads, guitar amps and pianos