Extreme Audio 3.5mm Stereo (4 Pole) to RCA Digital Coaxial Audio Connection Cable for FiiO X3 2nd Generation, FiiO X5 2nd Generation and Fiio X7 (6ft) ***IMPORTANT*** THIS CABLE WORKS WITH FIIO HIGH RESOLUTION AUDIO PLAYERS. IF YOUR DEVICE DOES NOT SUPPORT 4 POLE DIGITAL AUDIO OUT, PLEASE DO NOT BUY THIS ITEM. Gold-plated premium quality connectors with rugged mesh over PVC cable protection, bare copper conductors, and ferrite bead shielding combine together to provide superior stereo audio transmission and protect against RFI and EMI. The beveled, step-down design of the 3.5mm connector provides a secure connection with your high resolution audio players, or portable headphone amplifiers. It comes with one year warranty. Designed to be used with your high resolution audio player, portable headphone amplifier. Rugged mesh over PVC cable for double protection with premium quality gold plated connectors. 3.5mm Stereo Male to 1x RCA Male Coaxial Audio Cable (6ft)