Lossless transmission for numerous devices The LD-LT1 can connect USB Type B devices such as the FiiO K5 Pro, K9 Pro to USB Lightning port devices such as smartphones, tablets, or music players for lossless high-res music playback.* Its recommended to turn off your FiiO device's charging function through the FiiO Music app to get the best experience. *Devices requiring more than 200mA are not supported. Please do not use the LD-LT1 to charge Apple devices. Musical purity From structural complexity The cable features a complex structure that comprises of tin-plated copper wires, reinforced wire and tin-plated copper braided shielding, aluminium foil shielding, PVC sheath, and nylon braiding. This complicated structure allows for better shielding from external electromagnetic interference and results in purer signal transmission over the cable. Light and compact The cable's compact 50cm length allows you to properly connect your devices without taking up too much space.