As a main sponsor of the US Open, Chase has two pavilions at the Billie Jean King National Tennis Center located just outside of Arthur Ashe Stadium. In addition to the pavilions on the main grounds, Chase also sponsors the Chase Lounge, a large indoor mezzanine on the grounds. One of the outdoor pavilions served as a registration booth for the Chase Lounge. The other pavilion contains a large LED wall with a cellphone locker and charger located behind each LED unit. Upon entering simple security questions on an iPad in the pavilion, a locker with the corresponding color will illuminate signifying to the user which locker is assigned. Each locker is complete with a fully secure locking mechanism allowing for customers to leave their phones while charging. Upon returning and entering the same security questions, the LED illuminated with the corresponding color to unlock and reset the locker.