They primarily speak the Mru language, a Tibeto-Burman language, and one of the recognized languages of Bangladesh. The Mru language is considered «definitely endangered» by UNESCO in June 2010. The language of the Mro can be classified under Sino-Tibetan or Tibeto-Burman linguistic group. Dialects include Anok, Downpreng and Sungma. It has 13% lexical similarity with Khami and 72%-76% with Anu-Hkongsu. In Bangladesh, around 91% — 98% of the population speaks Downpreng and Sungma dialects. Both Latin 0000–007F and Mru alphabets, formed in 1980s, are used in writing even though the latter is more commonly used for the literacy development. It is also categorized as a developing language.