The 450cm Grado extension cable is suitable for use with any headphone that use the 1/4 inch or 6.3mm plug.
Offering an additional 15ft (4.5m) of high-quality cable to your headphones.
This allow you to sit further away from your amplifier with no loss of quality.
Suitable for all headphones - The cable has a 6.3mm female socket and a 6.3mm male output.
Please note that you may need adaptors if your headphones or amplifiers are 3.5mm