AudioQuest Pearl 1.5m Micro-USB Cable - High-Speed USB 2.0 A to Micro-B Male/Male Charging & Data Sync Cable (Black) - Perfect for Smartphones, Tablets & Portable Devices

AudioQuest 1.5m Pearl USB-A > Micro B 2.0 High-Definition Audio Cable Semi-Solid Concentric Long-Grain Copper (LGC) ConductorsIn a conventional multi-strand cable, distortion caused by electrical and magnetic strand interaction is compounded as each strand changes position within the bundle. In an AQ Semi-Solid Concentric cable, strands within the bundle maintain their fixed relationships, significantly reducing distortion. Long-Grain Copper (LGC) allows a smoother and clearer sound than cables using regular OFHC (Oxygen-Free High-Conductivity) copper. LGC has fewer oxides within the conducting material, less impurities, less grain boundaries, and definitively better performance. Metal-Layer Noise-DissipationIt's easy to accomplish 100% shield coverage. Preventing captured radio-frequency interference (RFI) from modulating the equipment's ground reference requires AQ's Noise-Dissipation. Traditional shield systems typically absorb and then drain noise/RF energy to component ground, modulating and distorting the critical "reference" ground plane, which in turn causes a distortion of the signal. Noise-Dissipation "shields the shield," absorbing and reflecting most of this noise/RF energy before it reaches the layer attached to ground. Hard-Cell Foam InsulationHard-Cell Foam (HCF) Insulation ensures critical signal-pair geometry. Any solid material adjacent to a conductor is actually part of an imperfect circuit. Wire insulation and circuit board materials all absorb energy. Some of this energy is stored and then released as distortion. Hard-Cell Foam Insulation is similar to the Foamed-PE used in our more affordable Bridges & Falls cables, and is nitrogen-injected to create air pockets. Because nitrogen (like air) does not absorb energy and therefore does not release any energy from or into the conductor, distortion is reduced. In addition, the stiffness of the material allows the cable's conductors to maintain a stable relationship along the cable's full length, producing a stable impedance character and further minimizing distortion. Direction-Controlled ConductorsAll drawn metal strands or conductors have a non-symmetrical, and therefore directional, grain structure. AudioQuest controls the resulting RF impedance variation so that noise is drained away from where it will cause distortion. The correct direction is determined by listening to every batch of metal conductors used in every AudioQuest audio cable. When applicable, arrows are clearly marked on the connectors to ensure superior sound quality. For most models of AQ cable, the arrows not only indicate the direction that optimizes metal-directionality as part of Noise-Dissipation, but also indicates non-symmetrical attachment of shield and GND in order to optimize full-system performance. A fundamental aspect of AudioQuest's multifaceted Noise-Dissipation technology, Direction-Controlled Conductors ensure induced noise is dissipated and drained properly. Key Features & Technology Explained Semi-Solid Concentric Conductors Semi-Solid Concentric conductors significantly reduce strand-interaction, a major source of dynamic distortion in cables. Long-Grain Copper (LGC) Metal High-purity Long-Grain Copper (LGC) conductors minimize distortion caused by grain boundaries. Direction-Controlled All internal conductors are Direction-Controlled to reduce RF noise. Hard-Cell Foam Insulation (HCF) Hard-Cell Foam's high air content minimizes energy absorption for clearer sound. Pearl USB-A > Micro B 2.0 Forest USB-A > Micro B 2.0 Cinnamon USB-A > Micro B 2.0 Carbon USB-A > Micro B 2.0 Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 4.6 out of 5 stars 38 4.4 out of 5 stars 15 3.8 out of 5 stars 14 — Price $49.95$49.95 $89.95$89.95 $95.29$95.29 — no data Metal Semi-Solid Concentric Long-Grain Copper (LGC) 0.5% Silver Semi-Solid Concentric 1.25% Silver Semi-Solid Concentric 5% Silver Semi-Solid Concentric Noise Dissipation Metal-Layer Noise-Dissipation Metal-Layer Noise-Dissipation Metal-Layer Noise-Dissipation Carbon-Based Noise-Dissipation for USB A - B and USB 3.0 A - 3.0 Micro Voltage 5 5 5 5 Finish Gold Gold Gold Silver Dielectric Hard-Cell Foam Hard-Cell Foam Hard-Cell Foam Hard-Cell Foam