A class of devas born in the Realm of Infinite Space (ākāsānañcāyatana) (M.iii.103).
They belong to the Arūpa world and their life term is twenty thousand kappas (A.i.267; AbhS., p.23).
Their mind arises and ceases moment by moment (Kvu.i.207-8).
In the description of the Arūpāvacarabhūmi, these devas represent the lowest limit, the highest being the Nevasaññānāsaññā. Ps.i.84.