I don't understand anything. But I still watched full video and would like to see more - from her. She has nice forehand technique, and very good backhand. Hope can watch her doing volley, because volley is my weakness :(
It's simply a racket testing day if you can't guess. Some were born to have a good sense of sensitive touch but folks, in general, can possess good volleys by practicing fundamentals effortfully.
What Head racquet models are play tested in order: my guesses below Aluminum ... orange (Artengo) Decathalon TR960... dark blue Speed ... white + orange Gravity ... black + green Graphene ... black + blue Prestige ... black + red
Respects from a Chinese-American in California, been here too many generations. RR Brothers please add English subtitles too, and more of this pretty woman player demonstrating strokes and techniques! ... which would add tens of thousands more views, if not hundred.