Custom Walkman Digital Audio Output Cable for OPPO HA-2 & HA-2SE WM-Port to USB Micro B with 90 Degrees L-Shape Plugs Custom cable mod based on the original WMC-NWH10 cable This cable does not draw power from the Walkman and does not affect battery usage Works reliably with OPPO HA-2 & HA-2SE headphone amplifier and DAC