Elite Core EC-HEX Standard Headphone Extension (1/4" TRS R/A - 3.5MM Female) 10' and 18' FASTSHIP Usually ships same day. Length options available MSRP: Was: Now: $18.99 - $25.99 Elite Core Headphone Extension CableA high-performance 1/8" to 1/4" cable for Headphone Extension. Right angle connector on one end, and a female 3.5mm jack on the other end. Available in 10 or 18 feet. Choose Options