Compared with the market share of OPPO mobile phone horror, its high-fidelity headphones seem to be a little obscure. As everyone knows, the OPPO PM-1 won both the AVTech Awards Best Headset and the EISA AWARDS EUROPEAN Best Model in the first year of its launch. In February 2017, The Absolute Sound's buying guide commented on it: "The unique planar magnetic driver technology greatly improves the sensitivity of the headphones, lowers the threshold for high-end headphones to adapt to ordinary sound sources, and allows more people to enjoy beautiful sound." "The overall atmosphere of the PM-1 is relatively soft, the vocal interpretation is mellow and natural, and the high-frequency extension is smooth and burr-free. Although the layering between the instruments is clear, the overall soundstage is not wide enough. In contrast, it is more suitable for popular and small repertoire, with a price of about 8000 yuan, and it is one of the few big headphones that can produce a good sound directly. If the budget is limited, the three-time Japanese VGP Award winner PM-2 can also provide sound quality comparable to that of the flagship, but the overall workmanship and materials are slightly reduced, and the price is about 5000 yuan.