Bat

Armor Class 12

Hit Points 1 (1d4 - 1)

Speed 5 ft., fly 30 ft.

Initiative +2

Senses blindsight 60 ft., passive Perception 11

Challenge 0

Source Monster Manual

Echolocation. The bat can't use its blindsight while deafened.

Keen Hearing. The bat has advantage on Wisdom (Perception) checks that rely on hearing.

Bite. Melee Weapon Attack: +0 to hit, reach 5 ft., one creature. 1 piercing damage.