snake's hiss

Translations
шипение змеи
Her voice had the smoothness of a snake's hiss, luring people in with charm.
Ее голос был гладким, как шипение змеи, и завораживал людей своим обаянием.
Definitions
The sound made by a snake, characterized by a sharp, sibilant noise produced when the snake forces air through its mouth or nose, often as a warning or defensive behavior.