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)

Silver coated cables are employed

23 in Height

3mm gold-plated jack

the Final Audio Sonorous II Closed-Back Over-Ear Headphones excel in the generation of high frequency harmonic overtones

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.