This is the Triton Audio FetHead Transformer. It's a microphone preamplifier specifically for dynamic and ribbon microphones. Please note that it is not compatible with condenser microphones. The main difference from the normal FetHead is subtle, but this version adds a touch of warmth and character due to its nickel core transformer. Also, the gain is +28dB, which is slightly higher than the normal FetHead's +27dB. [Contents] ・Preamplifier unit ・Drawstring bag ・Case ・Instruction manual ・Outer bag The original outer box is not included. I purchased this authentic product new last year and have kept it in storage without ever using it. I've decided to sell it as I don't anticipate using it in the future. It is in excellent condition with no scratches or stains. I have only tested it to confirm that it powers on and functions correctly. It has been stored properly in a humidity-controlled environment in a smoke-free and pet-free home. I am unable to negotiate on the price. Thank you for your understanding.