Embouchure on saxophone is the connection between you and the horn.
It gives you control over your sound.
Embouchure takes time to develop and you have to be careful to avoid bad habits.
Saxophone Embouchure Introduction Video
Saxophone Embouchure and Saxophone Muscles
Saxophone Embouchure – Joe Allard Perspective
Breaks During Saxophone Practice & Saxophone Embouchure Question
Saxophone Embouchure – Avoid Getting Tired