Specification/Additional Details

Product Description

Measurement of visual acuity using illiterate E-chart and Times Roman reading types.

• Ergonomic Design: Buttons and charging holes at the bottom which makes operation easier.
• Appearance: One-handhold body size, black color and plastic material.
• Power: Being thinner and more exquisite by using Li battery.
• Charging: Replaceable plug, able to charge both on socket and computer.