No Setup Required: Works out of the Box and Without Any Settings. Insert 2 AAA Batteries (not Included) and Ready to Go. Remote Control for Viewsonic Projector PA503S PA503SP PA503W PA503X PA503XP PA500S, PA500X, PA503S, PA503SP, PA503W, PA503X, PA503XP, PG700WU, PS500X, PS501W, PS501X, PX700HD
Stable Performance: Strongest Signal by Infrared Technology, Covers All the Functions of the Original Remote. Farther Transmitting Distance over 10 Meters/33 Feet.
Fast Response: Soft Touch and Anti-dusted Buttons. Fastest Response Not over 0.2 Second. Supports over 150, 000 Clicks Approved by Tests