28 Dec Uncategorized GADGETS – OPPO HA-2便攜式耳機擴音器 / USB DAC Posted on December 28, 2015 by [email protected] HA-2是OPPO全新推出的便攜式HiFi耳機擴音器及數模轉換器（USB DAC）。HA-2配備了 AB類的放大電路以及ESS Sabre32更多… Continue reading →