Grado extension cable terminated with a 1/4 inch (6.3mm) plug and a 1/4 inch (6.3mm) jack.

Standard 4 Conductor Extension Cable
Grado offers a 15 foot (450cm) extension cable terminated with a 1/4 inch (6.3mm) plug and a 1/4 inch (6.3mm) jack. This cable is constructed from the same high quality wire as their headphone cable with 4 inner conductors.

For longer lengths, the cable may be piggybacked up to 3 cables. Grado guarantees no degradation of sonic quality with Grado headphones while using their extension cable.

Prestige 12 Conductor Extension Cable
Grado's Prestige cable offers a 12-foot (365cm) extension terminated with a 1/4 inch (6.3mm) connector and a 1/4 inch (6.3mm) jack. This cable is constructed from the same high quality wire as Prestige Series headphones with 12 inner conductors.