Neutrik NJ3FC6 - Professional locking 1/4" cable jack for secure in-line connections. Nickel housing, silver contacts, excellent cable protection future-sound-systems you can use the octave

you can use the octave buttons in conjunction with the key transpose function to play MIDI's entire range of notes

each knob controls a voltage range of 0 to +5 v or  -5 to +5 v depending on the position of the mode switch

padded headband and earcups for stylish comfort

and a well-balanced 40 Hz to 20 kHz frequency response

Neutrik NJ3FC6 - Professional locking 1/4" cable jack for secure in-line connections. Nickel housing, silver contacts, excellent cable protection future-sound-systems you can use the octaveProfessional locking 1 4" cable jack for secure in line connections. Nickel housing, silver contacts, excellent cable protection The 3 pole phone cable jack in line version provides stable and secure connections where accidental disconnect or shock and vibration may occur. It latches with standard A gauge mono or stereo plugs. Plug locks in automatically when mating and unlocks only by pressing red release tab. Features: Securely locking cable jack