Grado X-Series Prestige Headphone Mini-Extension Cable (15ft, 3.5mm) (Open Box) - Discontinued American brand The Bluetooth system inside has

The Bluetooth system inside has been upgraded by iFi to avoid the 40% drop in audio quality you typically experience with standard Bluetooth (compared to wired audio)

Every experience since that kitchen table has led to the creation of the Signature S750 headphone

especially in low-frequency ranges

2m thread Kevlar OFC with Mic and remote

Grado X-Series Prestige Headphone Mini-Extension Cable (15ft, 3.5mm) (Open Box) - Discontinued American brand The Bluetooth system inside hasFour conductor: 15 foot (450cm) extension cable terminated with a 3. 5mm plug and a 3. 5mm jack. The cables are constructed from the same high quality super annealed copper wire as the X Series headphone cables, with braided sheathing. For longer lengths cables may be piggybacked up to 3 cables. Grado guarantees no degradation of sonic quality with Grado headphones while using their extension cable.