Ama-Headphone e-Wireless Neckband I-Oppo Enco M31 ingama-headphone e-wireless neckband aklanyelwe ukusetshenziswa usuku lonke. I-neckband inesisindo esingamagremu angu-22 futhi yenziwe nge-liquid silicone efakwe ngaphezulu kwentambo ye-memory titanium alloy, ngakho-ke ukubunjeka kuyagcinwa ngemva kokugotshwa futhi ama-headphone angagoqwa agcinwe ephaketheni. Izindlu zama-earbud zenziwe nge-polycarbonate composite ukuze ziqine futhi zibe lula ngesisindo. Ama-magnet afihliwe adonsa ama-earbud amabili ndawonye, okunqamula ukuxhumana nedivayisi exhunyiwe ngokuzenzakalelayo futhi kongiwe amandla. Ukufakwa kwekhodi yomsindo ye-Ldac kusekela amahora afika ku-12 okudlala.