Duola Pang (胖哆啦, Pàng Duola) is a Chinese voicebank, and is voiced by Lalabu-Shi-Zhu (啦啦bu是猪, Lala bu shì zhū).
Her voicebank can be downloaded here :
Duola's voice can be heard here and here  (YT reprint).
Her voice is clear, high-pitched and slightly childish-sounding. The recommended range is B3-B4 and her recommended genres are love songs, traditional music and lullabies.