As of 2009 there were several semi-speakers who retained significant lexical, and partial grammatical, knowledge of the language (Michael et al. 2013).

It is also called Balsapuertiño, named after the village of Balsapuerto in the department of Loreto, Peru.

[2][3] Unattested "Munichi stock" varieties listed by Loukotka (1968):[1] Varieties listed by Mason (1950):[4] The language is considered an isolate (Michael et al. 2013), but the pronominal suffixes bear a close resemblance to those reconstructed for proto-Arawakan (Gibson 1996:18-19), and some lexical items are similar to ones in Arawakan languages (Jolkesky 2016:310–317).

There is substantial borrowing from the local variety of Quechua, and to a lesser extent from Spanish and Cahuapanan languages (Michael et al. 2013).

Jolkesky (2016) notes that there are lexical similarities with the Cholon-Hibito, Kechua, and Mochika language families due to contact.