The Enco M31 are the latest pair of wireless earphones from Oppo. On paper, the Enco M31 seem fully featured, with LDAC, Hi-Res Wireless Audio certification, IPX5 certified water resistance, and Ai-powered noise cancellation for voice calls, all at a relatively affordable price. The inclusion of LDAC alone should put a smile on a few faces, as support for this codec is largely absent in budget audio gear. And the Enco M31 is well and truly "budget"; I picked up this pair for INR 1999 from Amazon India, which is only about $26. So what's the catch and how do they perform? Let's find...
Source: https://www.gsmarena.com/oppo_enco_m31_wireless_earphones_review-news-44307.php