This 10ft ReadyPlug cable is guaranteed to work with the FiiO Taishan Digital to Analog Converter D03K. Tired of being tied to an outlet? This far-reaching cord allows the freedom to move about, and still charge you device. The flexible design still allows you to roll it up and take it with you on the go. Providing USB power to charge the FiiO Taishan Digital to Analog Converter D03K. Simply plug into any USB port (rate of charge depends on USB port used.) The cable is protected from EMI/RFI interference with an outer foil shield, inner braid shield and twisted-pair composition to ensure performance. ~ ReadyPlug Lifetime Warranty ~