What is the material of the Xiaomi Smart Pet Food Feeder 2 and the capacity of the food compartment?

The materials of the Xiaomi Smart Pet Food Feeder 2 include HIPS (main body and food compartment) and 304 stainless steel (food bowl). Besides, The Xiaomi Smart Pet Food Feeder 2 has a 5L food compartment.
Note:
HIPS is a thermoplastic material made from polystyrene modified with elastomers. PP polypropylene is a polymer formed by propylene polymerization, a colorless, odorless, non-toxic, semi-transparent solid substance, mainly used in automotive, electronics, pharmaceuticals, and other fields. 304 stainless steel is a common material in stainless steel widely used in the food and medical industries.
There is no safety hazard. The adapter can safely protect against biting and prevent electrical leakage.