Di-headphone tsa Neckband tse se nang Mohala Oppo Enco M31 ke di-headphone tsa neckband tse se nang mohala tse etseditsweng ho sebediswa letsatsi lohle. Neckband e boima ba digramo tse 22 mme e entswe ka silicone e metsi e kwahetseng khwele ya titanium alloy ya memori, kahoo sebopeho se boloka moralo wa sona kamora ho kobeha mme di-headphone di ka menwa tsa bolokwa ka pokothong. Mekato ya di-earbud e entswe ka motswako wa polycarbonate bakeng sa matla le boima bo tlase. Dimakenete tse patilweng di hulanya di-earbud tse pedi mmoho, e leng se kgaolang sesebediswa se hoketsweng ka boiketsetso mme se boloka matla. Khouto ya modumo ya Ldac e tshehetsa nako ya ho bapala e fihlang dihoreng tse 12.

Lebitso la projeke : Oppo Enco M31, Lebitso la baqapi : OPPO Industrial Design Team, Lebitso la moreki : Guangdong OPPO Mobile Telecommunications Corp., Ltd..