The FiiO L5 is designed with a 3.5mm stereo jack to Sony Walkman dock connector, enabling output of high quality line-level audio from Sony Walkman audio players that can be sent to portable audio equipment such as headphone amplifiers and power amplifiers. Designed with high-quality materials, the L5 isolates the audio signal from interference to deliver cleaner and more accurate sound from your Sony Walkman. The L5 employs the new HPC-22W cable with ultra-fine PCOCC-A conductors for its exceptional signal transmission property and usability. Rather than twisting whole wires, twenty strands of 80?m PCOCC-A wire are unified into a bundle and three bundles are grouped as a conductor that is geometrically stable. This construction method ensures uniformity of wire structure, eliminates internal gaps, and prevents deformation of wire strands. Furthermore, its total conductive area is equivalent to AWG-22, which is three times larger than regular audio cables. Each conductor in the HPC-22W is jacketed with 0.18mm PFA (Teflon), a material selected for its outstanding electrical and transmission characteristics. The shield/ground consists of 53 strands of 0.12?m PCOCC-A wire, with cotton rope filling the internal space and providing additional tensil strenth. The outer jacket is made of TPE olefinic elastomer, making for a tough, durable yet overall flexible cable. Features Shielded construction provides maximum isolation from interference Pure copper conductors for better audio clarity and a more natural-sounding midrange High quality durable connectors for precise contact and signal integrity Specifications Length: 8cm (cable only) Weight: 10g Wire Diameter: 4mm Wire Model: HPC-22W Wire Material: PCOCC-A Impedance: Max 0.1 Ohm Insulation: Min 2M Ohm Wire Jacket: TPE