Body length: 7-8 cm

Body weight: 25–40 g

Wingspan: 35–44 cm

Colour: brown in the case of adults, brown-gray in the case of young ones, their belly is whitish. The skin of the ears, nose and wings is brown.

Life expectancy: In the wild, the greater mouse-eared bat can even reach 37 years of age, although the average life expectancy is estimated to be about 6-7 years.