Purchased on Amazon in October 2023. Employs a "2-gauge single-core structure" that combines two types of high-purity oxygen-free copper (OFC) wires with different diameters to transmit energy. Currently sold for 7,920 yen. Used for about 6 months, with no noticeable scratches or stains. J I think it pairs well with JBL small speakers. Please refer to the JBL website for detailed specifications.