It is endemic to Western New Guinea and known from the Wondiwoi Mountains, at the base of the Wandammen Peninsula.

The eyes are relatively small (hence the specific name microps, or "small-eyed", derived from Greek).

[1] Choerophryne microps inhabits primary rain forest at elevations of 380–1,000 m (1,250–3,280 ft) above sea level.

It was found to be locally very common, with highest abundance at intermediate altitudes (500–700 m).

Males call from on or in leaf litter or rotting logs, sometimes higher from the ground (to 1 m) in the hollows of plant stems.