Aspheric Magnifier 14x 50D 30mm - High Power Pocket Aspheric Magnifier. This low vision aid features newly designed Aspheric Lens with deluxe blue coating that provides superior optics. Noted for its simple maintenance changing batteries, this low vision aid is user friendly. This pocket magnifier offers a large raised switch is easier for arthritic fingers. High power range provides distortion-free image. Takes 2 AA batteries (not included).