Yellow-necked bats are currently found only in Taiwan, China. Medium bats are 48-65mm long, 40-50mm long forearms, and 35-48mm long tails. The rostral end of the head is obvious. The base of the dorsal hair is black to dark brown, and the dopant tip has golden hair. A yellow or white band of hair forms from the neck to the chest. The auricle is large, longer than the width of the ear, and the tip is blunt. The tragus is long and narrow, and the membranes extend to both sides and connect to the base of the toe.
Yellow-necked bats are typically nocturnal animals, but their main habitat is unknown. Emits typical short-duration and wide-band echolocation sound waves.