SAMSUNG THE BRAND WHICH SPEAK.PROFESSIONAL PHONE ITS PROVIDE FACE DETECTED LOCKER IN THIS PHONE. WE CAN SEE THE TWO SCREEN IN TWO PART UP AND DOWN AND THE GOOD OF THIS SMARTPHONE IS WE CAN ACCESS THE SOCIAL SITE AS WELL AS WE CAN ALSO SEE MOVIE OR VIDEO ETC.IT IS GOOD EXPERIENCE WHICH I HAVE BUY SAMSUNG J7 MAX AND I AM SATISFIED WITH MY PHONE.