The FiiO LS-2.5A and LS-2.5AS are high-quality interconnect cables designed for audio applications. These cables emphasize minimal signal loss and high transmission quality while maintaining flexibility and durability. The LS-2.5A utilizes a 2.5mm TRRS connector, catering primarily to audio devices with balanced output, thus providing a more immersive sound experience with reduced crosstalk. The LS-2.5AS variant features similar construction but may include enhanced shielding or different materials for improved noise rejection. Both models are crafted with oxygen-free copper for optimal conductivity, ensuring clear and precise sound reproduction across various frequencies. The cable length typically measures around 1.2 meters, making it ideal for portable audio solutions, while the build quality is robust to withstand everyday use. Additional features may include braided cable designs to minimize tangles and wear, and compatibility with a wide range of headphones and portable audio players, particularly those that use the 2.5mm audio jacks.