This remote control is compatible with the Viewsonic projectors PA503S, PA503SP, PA503W, PA503X, PA503XP, PA500S, PA500X, PG700WU, PS500X, PS501W, PS501X and PX700HD.

• Easy installation: Works immediately without setup. Simply insert 2 AAA batteries (not included) and it is ready to use.
• Stable performance: Uses infrared technology for a strong signal, covering all functions of the original remote control.
• Longer range: The transmission distance exceeds 10 meters / 33 feet.